1988 GMC K2500 Exhaust Muffler

Displaying 1 to 17 (of 17 products)

Walker 17222 Exhaust Muffler
for 1988 GMC K2500

DYNOMAX ULTRA-FLO WELDED

Brand:	Walker
Part #:	17222
UPC:	00086387172226
Weight:	13 lbs
Condition:	New

Engine	Per Vehicle	Fit Notes	Fitment Notes
1988 GMC K2500 equipped with 5.0L V8 Gas OHV, 4.3L V6 Gas OHV	1	Dynomax Ultra Flo Welded Universal Muffler Under 8500 G.V.W.R. If welded assembly, replace all required parts. Optional Ultra Flo for 22512	1988 GMC K2500 equipped with 5.0L V8 Gas OHV, 4.3L V6 Gas OHV Dynomax Ultra Flo Welded Universal Muffler Under 8500 G.V.W.R. If welded assembly, replace all required parts. Optional Ultra Flo for 22512 1 Per Vehicle

Walker 17234 Exhaust Muffler
for 1988 GMC K2500

DYNOMAX ULTRA-FLO WELDED

Brand:	Walker
Part #:	17234
UPC:	00086387172349
Weight:	18.18 lbs
Condition:	New

Engine	Per Vehicle	Fit Notes	Fitment Notes
1988 GMC K2500 equipped with 5.7L V8 Gas OHV	1	Dynomax Ultra Flo Welded Universal Muffler Over 8500 G.V.W.R. w/ 2.5 Muffler Inlet Dual Outlet If welded assembly, replace all required parts. Regular Duty Muffler. Optional Ultra Flo for 18344 Wheel Base 131.5 In.	1988 GMC K2500 equipped with 5.7L V8 Gas OHV Dynomax Ultra Flo Welded Universal Muffler Over 8500 G.V.W.R. w/ 2.5 Muffler Inlet Dual Outlet If welded assembly, replace all required parts. Regular Duty Muffler. Optional Ultra Flo for 18344 Wheel Base 131.5 In. 1 Per Vehicle
1988 GMC K2500 equipped with 5.7L V8 Gas OHV	1	Dynomax Ultra Flo Welded Universal Muffler Over 8500 G.V.W.R. w/ 2.5 Muffler Inlet Dual Outlet If welded assembly, replace all required parts. Regular Duty Muffler. Optional Ultra Flo for 18344 Wheel Base 155.5 In.	1988 GMC K2500 equipped with 5.7L V8 Gas OHV Dynomax Ultra Flo Welded Universal Muffler Over 8500 G.V.W.R. w/ 2.5 Muffler Inlet Dual Outlet If welded assembly, replace all required parts. Regular Duty Muffler. Optional Ultra Flo for 18344 Wheel Base 155.5 In. 1 Per Vehicle
1988 GMC K2500 equipped with 5.7L V8 Gas OHV	1	Dynomax Ultra Flo Welded Universal Muffler Over 8500 G.V.W.R. w/ 2.5 Muffler Inlet Dual Outlet If welded assembly, replace all required parts. Regular Duty Muffler. Wheel Base 131.5 In.	1988 GMC K2500 equipped with 5.7L V8 Gas OHV Dynomax Ultra Flo Welded Universal Muffler Over 8500 G.V.W.R. w/ 2.5 Muffler Inlet Dual Outlet If welded assembly, replace all required parts. Regular Duty Muffler. Wheel Base 131.5 In. 1 Per Vehicle
1988 GMC K2500 equipped with 5.7L V8 Gas OHV	1	Dynomax Ultra Flo Welded Universal Muffler Over 8500 G.V.W.R. w/ 2.5 Muffler Inlet Dual Outlet If welded assembly, replace all required parts. Regular Duty Muffler. Wheel Base 155.5 In.	1988 GMC K2500 equipped with 5.7L V8 Gas OHV Dynomax Ultra Flo Welded Universal Muffler Over 8500 G.V.W.R. w/ 2.5 Muffler Inlet Dual Outlet If welded assembly, replace all required parts. Regular Duty Muffler. Wheel Base 155.5 In. 1 Per Vehicle
1988 GMC K2500 equipped with 6.2L V8 Diesel OHV, 5.7L V8 Gas OHV	1	Dynomax Ultra Flo Welded Universal Muffler w/ 2.5 Muffler Inlet If welded assembly, replace all required parts. Up to 8500 G.V.W.R. Optional Ultra Flo for 18344 Wheel Base 131.5 In.	1988 GMC K2500 equipped with 6.2L V8 Diesel OHV, 5.7L V8 Gas OHV Dynomax Ultra Flo Welded Universal Muffler w/ 2.5 Muffler Inlet If welded assembly, replace all required parts. Up to 8500 G.V.W.R. Optional Ultra Flo for 18344 Wheel Base 131.5 In. 1 Per Vehicle
1988 GMC K2500 equipped with 6.2L V8 Diesel OHV, 5.7L V8 Gas OHV	1	Dynomax Ultra Flo Welded Universal Muffler w/ 2.5 Muffler Inlet If welded assembly, replace all required parts. Up to 8500 G.V.W.R. Optional Ultra Flo for 18344 Wheel Base 155.5 In.	1988 GMC K2500 equipped with 6.2L V8 Diesel OHV, 5.7L V8 Gas OHV Dynomax Ultra Flo Welded Universal Muffler w/ 2.5 Muffler Inlet If welded assembly, replace all required parts. Up to 8500 G.V.W.R. Optional Ultra Flo for 18344 Wheel Base 155.5 In. 1 Per Vehicle
1988 GMC K2500 equipped with 6.2L V8 Diesel OHV, 5.7L V8 Gas OHV	1	Dynomax Ultra Flo Welded Universal Muffler w/ 2.5 Muffler Inlet If welded assembly, replace all required parts. Up to 8500 G.V.W.R. Wheel Base 131.5 In.	1988 GMC K2500 equipped with 6.2L V8 Diesel OHV, 5.7L V8 Gas OHV Dynomax Ultra Flo Welded Universal Muffler w/ 2.5 Muffler Inlet If welded assembly, replace all required parts. Up to 8500 G.V.W.R. Wheel Base 131.5 In. 1 Per Vehicle
1988 GMC K2500 equipped with 6.2L V8 Diesel OHV, 5.7L V8 Gas OHV	1	Dynomax Ultra Flo Welded Universal Muffler w/ 2.5 Muffler Inlet If welded assembly, replace all required parts. Up to 8500 G.V.W.R. Wheel Base 155.5 In.	1988 GMC K2500 equipped with 6.2L V8 Diesel OHV, 5.7L V8 Gas OHV Dynomax Ultra Flo Welded Universal Muffler w/ 2.5 Muffler Inlet If welded assembly, replace all required parts. Up to 8500 G.V.W.R. Wheel Base 155.5 In. 1 Per Vehicle

Walker 22512 Exhaust Muffler
for 1988 GMC K2500

QUIET-FLOW3 MUFFLER

Brand:	Walker
Part #:	22512
UPC:	086387225120
Weight:	12 lbs
Condition:	New

Engine	Per Vehicle	Fit Notes	Fitment Notes
1988 GMC K2500 equipped with 5.0L V8 Gas OHV, 4.3L V6 Gas OHV	1	Quiet-Flow SS Below 8500 (lb) GVW Premium Limited Lifetime Warranty If welded assembly, replace all required parts	1988 GMC K2500 equipped with 5.0L V8 Gas OHV, 4.3L V6 Gas OHV Quiet-Flow SS Below 8500 (lb) GVW Premium Limited Lifetime Warranty If welded assembly, replace all required parts 1 Per Vehicle

Walker 22719 Exhaust Muffler
for 1988 GMC K2500

QUIET-FLOW3 MUFFLER

Brand:	Walker
Part #:	22719
UPC:	086387227193
Weight:	15 lbs
Condition:	New

Engine	Per Vehicle	Fit Notes	Fitment Notes
1988 GMC K2500 equipped with 5.7L V8 Gas OHV	1	Quiet-Flow SS Below 8500 (lb) GVW Premium with 3 (in) Muffler Inlet Limited Lifetime Warranty Requires 44461 Or 45344 If welded assembly, replace all required parts Wheel Base 131.5 In.	1988 GMC K2500 equipped with 5.7L V8 Gas OHV Quiet-Flow SS Below 8500 (lb) GVW Premium with 3 (in) Muffler Inlet Limited Lifetime Warranty Requires 44461 Or 45344 If welded assembly, replace all required parts Wheel Base 131.5 In. 1 Per Vehicle
1988 GMC K2500 equipped with 5.7L V8 Gas OHV	1	Quiet-Flow SS Below 8500 (lb) GVW Premium with 3 (in) Muffler Inlet Limited Lifetime Warranty Requires 44461 Or 45344 If welded assembly, replace all required parts Wheel Base 155.5 In.	1988 GMC K2500 equipped with 5.7L V8 Gas OHV Quiet-Flow SS Below 8500 (lb) GVW Premium with 3 (in) Muffler Inlet Limited Lifetime Warranty Requires 44461 Or 45344 If welded assembly, replace all required parts Wheel Base 155.5 In. 1 Per Vehicle
1988 GMC K2500 equipped with 6.2L V8 Diesel OHV	1	Quiet-Flow SS Below 8500 (lb) GVW Premium Replacement Requires Intermediate Pipe with 3 (in) Muffler Inlet Limited Lifetime Warranty If welded assembly, replace all required parts 8th VIN Digit: C	1988 GMC K2500 equipped with 6.2L V8 Diesel OHV Quiet-Flow SS Below 8500 (lb) GVW Premium Replacement Requires Intermediate Pipe with 3 (in) Muffler Inlet Limited Lifetime Warranty If welded assembly, replace all required parts 8th VIN Digit: C 1 Per Vehicle

Walker 17195 Exhaust Muffler
for 1988 GMC K2500

PREMIUM PRO-FIT MUFFLER

Brand:	Walker
Part #:	17195
UPC:	086387171953
Weight:	14.5 lbs
Condition:	New

Engine	Per Vehicle	Fit Notes	Fitment Notes
1988 GMC K2500 equipped with 5.7L V8 Gas OHV	1	Walker SoundFX Universal Muffler w/3 Inch Muffler Inlet Replacement requires 44461 or 45344 If welded assembly, replace all required parts. Up to 8500 G.V.W.R. Optional SoundFX Universal for 22719 Wheel Base 131.5 In.	1988 GMC K2500 equipped with 5.7L V8 Gas OHV Walker SoundFX Universal Muffler w/3 Inch Muffler Inlet Replacement requires 44461 or 45344 If welded assembly, replace all required parts. Up to 8500 G.V.W.R. Optional SoundFX Universal for 22719 Wheel Base 131.5 In. 1 Per Vehicle
1988 GMC K2500 equipped with 5.7L V8 Gas OHV	1	Walker SoundFX Universal Muffler w/3 Inch Muffler Inlet Replacement requires 44461 or 45344 If welded assembly, replace all required parts. Up to 8500 G.V.W.R. Optional SoundFX Universal for 22719 Wheel Base 155.5 In.	1988 GMC K2500 equipped with 5.7L V8 Gas OHV Walker SoundFX Universal Muffler w/3 Inch Muffler Inlet Replacement requires 44461 or 45344 If welded assembly, replace all required parts. Up to 8500 G.V.W.R. Optional SoundFX Universal for 22719 Wheel Base 155.5 In. 1 Per Vehicle
1988 GMC K2500 equipped with 6.2L V8 Diesel OHV	1	Walker SoundFX Universal Muffler w/3 Inch Muffler Inlet If welded assembly, replace all required parts. Replacement requires Intermediate Pipe. Up to 8500 G.V.W.R. Optional SoundFX Universal for 22719 Wheel Base 131.5 In.	1988 GMC K2500 equipped with 6.2L V8 Diesel OHV Walker SoundFX Universal Muffler w/3 Inch Muffler Inlet If welded assembly, replace all required parts. Replacement requires Intermediate Pipe. Up to 8500 G.V.W.R. Optional SoundFX Universal for 22719 Wheel Base 131.5 In. 1 Per Vehicle
1988 GMC K2500 equipped with 6.2L V8 Diesel OHV	1	Walker SoundFX Universal Muffler w/3 Inch Muffler Inlet If welded assembly, replace all required parts. Replacement requires Intermediate Pipe. Up to 8500 G.V.W.R. Optional SoundFX Universal for 22719 Wheel Base 155.5 In.	1988 GMC K2500 equipped with 6.2L V8 Diesel OHV Walker SoundFX Universal Muffler w/3 Inch Muffler Inlet If welded assembly, replace all required parts. Replacement requires Intermediate Pipe. Up to 8500 G.V.W.R. Optional SoundFX Universal for 22719 Wheel Base 155.5 In. 1 Per Vehicle

Walker 17273 Exhaust Muffler
for 1988 GMC K2500

DYNOMAX ULTRA-FLO STAINLE

Brand:	Walker
Part #:	17273
UPC:	00086387172738
Weight:	20.25 lbs
Condition:	New

Engine	Fit Notes	Fitment Notes
1988 GMC K2500 equipped with 6.2L V8 Diesel OHV	Muffler 131/155 WB 2-1/2 Inlet Or {22511} Ultra-Flo Under 8500 GVW VIN: C, MFI, Natural	1988 GMC K2500 equipped with 6.2L V8 Diesel OHV Muffler 131/155 WB 2-1/2 Inlet Or {22511} Ultra-Flo Under 8500 GVW VIN: C, MFI, Natural
1988 GMC K2500 equipped with 5.7L V8 Gas OHV	Muffler 131/155 WB 2-1/2 Inlet Or {22511} Ultra-Flo VIN: K, TBI, Natural	1988 GMC K2500 equipped with 5.7L V8 Gas OHV Muffler 131/155 WB 2-1/2 Inlet Or {22511} Ultra-Flo VIN: K, TBI, Natural

Walker 17734 Exhaust Muffler
for 1988 GMC K2500

DYNOMAX SUPER TURBO MUFFL

Brand:	Walker
Part #:	17734
UPC:	00086387177344
Weight:	10.38 lbs
Condition:	New

Engine	Per Vehicle	Fit Notes	Fitment Notes
1988 GMC K2500 equipped with 5.0L V8 Gas OHV, 4.3L V6 Gas OHV	1	Dynomax Super Turbo Universal Muffler Under 8500 G.V.W.R. If welded assembly, replace all required parts. Optional Super Turbo for 22512	1988 GMC K2500 equipped with 5.0L V8 Gas OHV, 4.3L V6 Gas OHV Dynomax Super Turbo Universal Muffler Under 8500 G.V.W.R. If welded assembly, replace all required parts. Optional Super Turbo for 22512 1 Per Vehicle

Walker 17758 Exhaust Muffler
for 1988 GMC K2500

DYNOMAX SUPER TURBO MUFFL

Brand:	Walker
Part #:	17758
UPC:	00086387177580
Weight:	14.63 lbs
Condition:	New

Engine	Fit Notes	Fitment Notes
1988 GMC K2500 equipped with 6.2L V8 Diesel OHV	Muffler 141 WB 2-1/2 Inlet Or {22171} Super Turbo Under 8500 GVW VIN: C, MFI, Natural	1988 GMC K2500 equipped with 6.2L V8 Diesel OHV Muffler 141 WB 2-1/2 Inlet Or {22171} Super Turbo Under 8500 GVW VIN: C, MFI, Natural
1988 GMC K2500 equipped with 5.7L V8 Gas OHV	Muffler 141 WB 2-1/2 Inlet Or {22171} Super Turbo Under 8500 GVW VIN: K, TBI, Natural	1988 GMC K2500 equipped with 5.7L V8 Gas OHV Muffler 141 WB 2-1/2 Inlet Or {22171} Super Turbo Under 8500 GVW VIN: K, TBI, Natural

Walker 17776 Exhaust Muffler
for 1988 GMC K2500

DYNOMAX SUPER TURBO MUFFL

Brand:	Walker
Part #:	17776
UPC:	00086387177764
Weight:	24 lbs
Condition:	New

Engine	Fit Notes	Fitment Notes
1988 GMC K2500 equipped with 6.2L V8 Diesel OHV	Muffler 131/155 WB 2-1/2 Inlet Or {22511} Super Turbo Under 8500 GVW VIN: C, MFI, Natural	1988 GMC K2500 equipped with 6.2L V8 Diesel OHV Muffler 131/155 WB 2-1/2 Inlet Or {22511} Super Turbo Under 8500 GVW VIN: C, MFI, Natural
1988 GMC K2500 equipped with 5.7L V8 Gas OHV	Muffler 131/155 WB 2-1/2 Inlet Or {22511} Super Turbo VIN: K, TBI, Natural	1988 GMC K2500 equipped with 5.7L V8 Gas OHV Muffler 131/155 WB 2-1/2 Inlet Or {22511} Super Turbo VIN: K, TBI, Natural

Walker 18133 Exhaust Muffler
for 1988 GMC K2500

UNIVERSAL TRU-FIT MUFFLER

Brand:	Walker
Part #:	18133
UPC:	086387181334
Weight:	14.8 lbs
Condition:	New

Engine	Per Vehicle	Fit Notes	Fitment Notes
1988 GMC K2500 equipped with 5.7L V8 Gas OHV	1	SoundFX Universal Below 8500 (lb) GVW with 2.5 (in) Muffler Inlet Modifications and/or Additional Parts May Be Required for Installation Wheel Base 131.5 In.	1988 GMC K2500 equipped with 5.7L V8 Gas OHV SoundFX Universal Below 8500 (lb) GVW with 2.5 (in) Muffler Inlet Modifications and/or Additional Parts May Be Required for Installation Wheel Base 131.5 In. 1 Per Vehicle
1988 GMC K2500 equipped with 5.7L V8 Gas OHV	1	SoundFX Universal Below 8500 (lb) GVW with 2.5 (in) Muffler Inlet Modifications and/or Additional Parts May Be Required for Installation Wheel Base 155.5 In.	1988 GMC K2500 equipped with 5.7L V8 Gas OHV SoundFX Universal Below 8500 (lb) GVW with 2.5 (in) Muffler Inlet Modifications and/or Additional Parts May Be Required for Installation Wheel Base 155.5 In. 1 Per Vehicle
1988 GMC K2500 equipped with 5.7L V8 Gas OHV	1	SoundFX Universal Below 8500 (lb) GVW with 3 (in) Muffler Inlet Requires 44461 Or 45344 Requires 35667 And Two 35564 Modifications and/or Additional Parts May Be Required for Installation Wheel Base 131.5 In.	1988 GMC K2500 equipped with 5.7L V8 Gas OHV SoundFX Universal Below 8500 (lb) GVW with 3 (in) Muffler Inlet Requires 44461 Or 45344 Requires 35667 And Two 35564 Modifications and/or Additional Parts May Be Required for Installation Wheel Base 131.5 In. 1 Per Vehicle
1988 GMC K2500 equipped with 5.7L V8 Gas OHV	1	SoundFX Universal Below 8500 (lb) GVW with 3 (in) Muffler Inlet Requires 44461 Or 45344 Requires 35667 And Two 35564 Modifications and/or Additional Parts May Be Required for Installation Wheel Base 155.5 In.	1988 GMC K2500 equipped with 5.7L V8 Gas OHV SoundFX Universal Below 8500 (lb) GVW with 3 (in) Muffler Inlet Requires 44461 Or 45344 Requires 35667 And Two 35564 Modifications and/or Additional Parts May Be Required for Installation Wheel Base 155.5 In. 1 Per Vehicle
1988 GMC K2500 equipped with 6.2L V8 Diesel OHV	1	SoundFX Universal Below 8500 (lb) GVW Replacement Requires Intermediate Pipe with 3 (in) Muffler Inlet Requires 35667 And Two 35564 Modifications and/or Additional Parts May Be Required for Installation 8th VIN Digit: C	1988 GMC K2500 equipped with 6.2L V8 Diesel OHV SoundFX Universal Below 8500 (lb) GVW Replacement Requires Intermediate Pipe with 3 (in) Muffler Inlet Requires 35667 And Two 35564 Modifications and/or Additional Parts May Be Required for Installation 8th VIN Digit: C 1 Per Vehicle
1988 GMC K2500 equipped with 6.2L V8 Diesel OHV	1	SoundFX Universal Below 8500 (lb) GVW with 2.5 (in) Muffler Inlet Modifications and/or Additional Parts May Be Required for Installation 8th VIN Digit: C Wheel Base 131.5 In.	1988 GMC K2500 equipped with 6.2L V8 Diesel OHV SoundFX Universal Below 8500 (lb) GVW with 2.5 (in) Muffler Inlet Modifications and/or Additional Parts May Be Required for Installation 8th VIN Digit: C Wheel Base 131.5 In. 1 Per Vehicle
1988 GMC K2500 equipped with 6.2L V8 Diesel OHV	1	SoundFX Universal Below 8500 (lb) GVW with 2.5 (in) Muffler Inlet Modifications and/or Additional Parts May Be Required for Installation 8th VIN Digit: C Wheel Base 155.5 In.	1988 GMC K2500 equipped with 6.2L V8 Diesel OHV SoundFX Universal Below 8500 (lb) GVW with 2.5 (in) Muffler Inlet Modifications and/or Additional Parts May Be Required for Installation 8th VIN Digit: C Wheel Base 155.5 In. 1 Per Vehicle
1988 GMC K2500 equipped with 5.7L V8 Gas OHV	1	SoundFX Universal Over 8500 (lb) GVW Regular Duty Muffler with 2.5 (in) Muffler Inlet with 8,500 (lb) Gross Vehicle Weight (GVW) with Dual Outlets Modifications and/or Additional Parts May Be Required for Installation Wheel Base 131.5 In.	1988 GMC K2500 equipped with 5.7L V8 Gas OHV SoundFX Universal Over 8500 (lb) GVW Regular Duty Muffler with 2.5 (in) Muffler Inlet with 8,500 (lb) Gross Vehicle Weight (GVW) with Dual Outlets Modifications and/or Additional Parts May Be Required for Installation Wheel Base 131.5 In. 1 Per Vehicle
1988 GMC K2500 equipped with 5.7L V8 Gas OHV	1	SoundFX Universal Over 8500 (lb) GVW Regular Duty Muffler with 2.5 (in) Muffler Inlet with 8,500 (lb) Gross Vehicle Weight (GVW) with Dual Outlets Modifications and/or Additional Parts May Be Required for Installation Wheel Base 155.5 In.	1988 GMC K2500 equipped with 5.7L V8 Gas OHV SoundFX Universal Over 8500 (lb) GVW Regular Duty Muffler with 2.5 (in) Muffler Inlet with 8,500 (lb) Gross Vehicle Weight (GVW) with Dual Outlets Modifications and/or Additional Parts May Be Required for Installation Wheel Base 155.5 In. 1 Per Vehicle

Walker 18176 Exhaust Muffler
for 1988 GMC K2500

UNIVERSAL TRU-FIT MUFFLER

Brand:	Walker
Part #:	18176
UPC:	086387181761
Weight:	11.16 lbs
Condition:	New

Engine	Per Vehicle	Fit Notes	Fitment Notes
1988 GMC K2500 equipped with 5.0L V8 Gas OHV, 4.3L V6 Gas OHV	1	SoundFX Universal Below 8500 (lb) GVW Modifications and/or Additional Parts May Be Required for Installation	1988 GMC K2500 equipped with 5.0L V8 Gas OHV, 4.3L V6 Gas OHV SoundFX Universal Below 8500 (lb) GVW Modifications and/or Additional Parts May Be Required for Installation 1 Per Vehicle

Walker 18177 Exhaust Muffler
for 1988 GMC K2500

UNIVERSAL TRU-FIT MUFFLER

Brand:	Walker
Part #:	18177
UPC:	086387181778
Weight:	10.64 lbs
Condition:	New

Engine	Per Vehicle	Fit Notes	Fitment Notes
1988 GMC K2500 equipped with 6.2L V8 Diesel OHV	1	SoundFX Universal Below 8500 (lb) GVW Single Outlet Muffler Replaces Dual Outlet with 2.5 (in) Muffler Inlet Modifications and/or Additional Parts May Be Required for Installation 8th VIN Digit: C Wheel Base 131.5 In.	1988 GMC K2500 equipped with 6.2L V8 Diesel OHV SoundFX Universal Below 8500 (lb) GVW Single Outlet Muffler Replaces Dual Outlet with 2.5 (in) Muffler Inlet Modifications and/or Additional Parts May Be Required for Installation 8th VIN Digit: C Wheel Base 131.5 In. 1 Per Vehicle
1988 GMC K2500 equipped with 6.2L V8 Diesel OHV	1	SoundFX Universal Below 8500 (lb) GVW Single Outlet Muffler Replaces Dual Outlet with 2.5 (in) Muffler Inlet Modifications and/or Additional Parts May Be Required for Installation 8th VIN Digit: C Wheel Base 155.5 In.	1988 GMC K2500 equipped with 6.2L V8 Diesel OHV SoundFX Universal Below 8500 (lb) GVW Single Outlet Muffler Replaces Dual Outlet with 2.5 (in) Muffler Inlet Modifications and/or Additional Parts May Be Required for Installation 8th VIN Digit: C Wheel Base 155.5 In. 1 Per Vehicle

Walker 18202 Exhaust Muffler
for 1988 GMC K2500

Brand:	Walker
Part #:	18202
UPC:	086387182027
Weight:	14 lbs
Condition:	New

Engine	Per Vehicle	Fit Notes	Fitment Notes
1988 GMC K2500 equipped with 5.7L V8 Gas OHV	1	SoundFX Direct Fit Below 8500 (lb) GVW with 3 (in) Muffler Inlet Requires 44461 Or 45344 If welded assembly, replace all required parts Wheel Base 131.5 In.	1988 GMC K2500 equipped with 5.7L V8 Gas OHV SoundFX Direct Fit Below 8500 (lb) GVW with 3 (in) Muffler Inlet Requires 44461 Or 45344 If welded assembly, replace all required parts Wheel Base 131.5 In. 1 Per Vehicle
1988 GMC K2500 equipped with 5.7L V8 Gas OHV	1	SoundFX Direct Fit Below 8500 (lb) GVW with 3 (in) Muffler Inlet Requires 44461 Or 45344 If welded assembly, replace all required parts Wheel Base 155.5 In.	1988 GMC K2500 equipped with 5.7L V8 Gas OHV SoundFX Direct Fit Below 8500 (lb) GVW with 3 (in) Muffler Inlet Requires 44461 Or 45344 If welded assembly, replace all required parts Wheel Base 155.5 In. 1 Per Vehicle
1988 GMC K2500 equipped with 6.2L V8 Diesel OHV	1	SoundFX Direct Fit Below 8500 (lb) GVW Replacement Requires Intermediate Pipe with 3 (in) Muffler Inlet If welded assembly, replace all required parts 8th VIN Digit: C	1988 GMC K2500 equipped with 6.2L V8 Diesel OHV SoundFX Direct Fit Below 8500 (lb) GVW Replacement Requires Intermediate Pipe with 3 (in) Muffler Inlet If welded assembly, replace all required parts 8th VIN Digit: C 1 Per Vehicle

Walker 18255 Exhaust Muffler
for 1988 GMC K2500

Brand:	Walker
Part #:	18255
UPC:	086387182553
Weight:	11 lbs
Condition:	New

Engine	Per Vehicle	Fit Notes	Fitment Notes
1988 GMC K2500 equipped with 5.0L V8 Gas OHV, 4.3L V6 Gas OHV	1	SoundFX Direct Fit Below 8500 (lb) GVW If welded assembly, replace all required parts	1988 GMC K2500 equipped with 5.0L V8 Gas OHV, 4.3L V6 Gas OHV SoundFX Direct Fit Below 8500 (lb) GVW If welded assembly, replace all required parts 1 Per Vehicle

Walker 18337 Exhaust Muffler
for 1988 GMC K2500

Brand:	Walker
Part #:	18337
UPC:	086387183376
Weight:	12.5 lbs
Condition:	New

Engine	Per Vehicle	Fit Notes	Fitment Notes
1988 GMC K2500 equipped with 6.2L V8 Diesel OHV	1	SoundFX Direct Fit Below 8500 (lb) GVW with 2.5 (in) Muffler Inlet If welded assembly, replace all required parts 8th VIN Digit: C Wheel Base 131.5 In.	1988 GMC K2500 equipped with 6.2L V8 Diesel OHV SoundFX Direct Fit Below 8500 (lb) GVW with 2.5 (in) Muffler Inlet If welded assembly, replace all required parts 8th VIN Digit: C Wheel Base 131.5 In. 1 Per Vehicle
1988 GMC K2500 equipped with 6.2L V8 Diesel OHV	1	SoundFX Direct Fit Below 8500 (lb) GVW with 2.5 (in) Muffler Inlet If welded assembly, replace all required parts 8th VIN Digit: C Wheel Base 155.5 In.	1988 GMC K2500 equipped with 6.2L V8 Diesel OHV SoundFX Direct Fit Below 8500 (lb) GVW with 2.5 (in) Muffler Inlet If welded assembly, replace all required parts 8th VIN Digit: C Wheel Base 155.5 In. 1 Per Vehicle

Walker 18344 Exhaust Muffler
for 1988 GMC K2500

SOUND FX MUFFLER

Brand:	Walker
Part #:	18344
UPC:	086387183444
Weight:	13.5 lbs
Condition:	New

Engine	Per Vehicle	Fit Notes	Fitment Notes
1988 GMC K2500 equipped with 5.7L V8 Gas OHV	1	SoundFX Direct Fit Below 8500 (lb) GVW with 2.5 (in) Muffler Inlet If welded assembly, replace all required parts Wheel Base 131.5 In.	1988 GMC K2500 equipped with 5.7L V8 Gas OHV SoundFX Direct Fit Below 8500 (lb) GVW with 2.5 (in) Muffler Inlet If welded assembly, replace all required parts Wheel Base 131.5 In. 1 Per Vehicle
1988 GMC K2500 equipped with 5.7L V8 Gas OHV	1	SoundFX Direct Fit Below 8500 (lb) GVW with 2.5 (in) Muffler Inlet If welded assembly, replace all required parts Wheel Base 155.5 In.	1988 GMC K2500 equipped with 5.7L V8 Gas OHV SoundFX Direct Fit Below 8500 (lb) GVW with 2.5 (in) Muffler Inlet If welded assembly, replace all required parts Wheel Base 155.5 In. 1 Per Vehicle
1988 GMC K2500 equipped with 6.2L V8 Diesel OHV	1	SoundFX Direct Fit Below 8500 (lb) GVW with 2.5 (in) Muffler Inlet If welded assembly, replace all required parts 8th VIN Digit: C Wheel Base 131.5 In.	1988 GMC K2500 equipped with 6.2L V8 Diesel OHV SoundFX Direct Fit Below 8500 (lb) GVW with 2.5 (in) Muffler Inlet If welded assembly, replace all required parts 8th VIN Digit: C Wheel Base 131.5 In. 1 Per Vehicle
1988 GMC K2500 equipped with 6.2L V8 Diesel OHV	1	SoundFX Direct Fit Below 8500 (lb) GVW with 2.5 (in) Muffler Inlet If welded assembly, replace all required parts 8th VIN Digit: C Wheel Base 155.5 In.	1988 GMC K2500 equipped with 6.2L V8 Diesel OHV SoundFX Direct Fit Below 8500 (lb) GVW with 2.5 (in) Muffler Inlet If welded assembly, replace all required parts 8th VIN Digit: C Wheel Base 155.5 In. 1 Per Vehicle
1988 GMC K2500 equipped with 5.7L V8 Gas OHV	1	SoundFX Direct Fit Over 8500 (lb) GVW Regular Duty Muffler with 2.5 (in) Muffler Inlet with 8,500 (lb) Gross Vehicle Weight (GVW) with Dual Outlets If welded assembly, replace all required parts Wheel Base 131.5 In.	1988 GMC K2500 equipped with 5.7L V8 Gas OHV SoundFX Direct Fit Over 8500 (lb) GVW Regular Duty Muffler with 2.5 (in) Muffler Inlet with 8,500 (lb) Gross Vehicle Weight (GVW) with Dual Outlets If welded assembly, replace all required parts Wheel Base 131.5 In. 1 Per Vehicle
1988 GMC K2500 equipped with 5.7L V8 Gas OHV	1	SoundFX Direct Fit Over 8500 (lb) GVW Regular Duty Muffler with 2.5 (in) Muffler Inlet with 8,500 (lb) Gross Vehicle Weight (GVW) with Dual Outlets If welded assembly, replace all required parts Wheel Base 155.5 In.	1988 GMC K2500 equipped with 5.7L V8 Gas OHV SoundFX Direct Fit Over 8500 (lb) GVW Regular Duty Muffler with 2.5 (in) Muffler Inlet with 8,500 (lb) Gross Vehicle Weight (GVW) with Dual Outlets If welded assembly, replace all required parts Wheel Base 155.5 In. 1 Per Vehicle

Walker 22171 Exhaust Muffler
for 1988 GMC K2500

QUIET-FLOW3 MUFFLER

Brand:	Walker
Part #:	22171
UPC:	086387221719
Weight:	14.25 lbs
Condition:	New

Engine	Per Vehicle	Fit Notes	Fitment Notes
1988 GMC K2500 equipped with 6.2L V8 Diesel OHV	1	Quiet-Flow SS Below 8500 (lb) GVW Premium with 2.5 (in) Muffler Inlet Limited Lifetime Warranty If welded assembly, replace all required parts 8th VIN Digit: C Wheel Base 131.5 In.	1988 GMC K2500 equipped with 6.2L V8 Diesel OHV Quiet-Flow SS Below 8500 (lb) GVW Premium with 2.5 (in) Muffler Inlet Limited Lifetime Warranty If welded assembly, replace all required parts 8th VIN Digit: C Wheel Base 131.5 In. 1 Per Vehicle
1988 GMC K2500 equipped with 6.2L V8 Diesel OHV	1	Quiet-Flow SS Below 8500 (lb) GVW Premium with 2.5 (in) Muffler Inlet Limited Lifetime Warranty If welded assembly, replace all required parts 8th VIN Digit: C Wheel Base 155.5 In.	1988 GMC K2500 equipped with 6.2L V8 Diesel OHV Quiet-Flow SS Below 8500 (lb) GVW Premium with 2.5 (in) Muffler Inlet Limited Lifetime Warranty If welded assembly, replace all required parts 8th VIN Digit: C Wheel Base 155.5 In. 1 Per Vehicle

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1988 GMC K2500

1988 GMC K2500: Exhaust Muffler

$94.83

1988 GMC K2500 equipped with 5.0L V8 Gas OHV, 4.3L V6 Gas OHV

1

Dynomax Ultra Flo Welded Universal MufflerUnder 8500 G.V.W.R. If welded assembly, replace all required parts. Optional Ultra Flo for 22512

1988 GMC K2500 equipped with 5.0L V8 Gas OHV, 4.3L V6 Gas OHV Dynomax Ultra Flo Welded Universal MufflerUnder 8500 G.V.W.R. If welded assembly, replace all required parts. Optional Ultra Flo for 22512 1 Per Vehicle

$297.21

1988 GMC K2500 equipped with 5.7L V8 Gas OHV

1

Dynomax Ultra Flo Welded Universal MufflerOver 8500 G.V.W.R. w/ 2.5 Muffler Inlet Dual Outlet If welded assembly, replace all required parts. Regular Duty Muffler. Optional Ultra Flo for 18344Wheel Base 131.5 In.

1988 GMC K2500 equipped with 5.7L V8 Gas OHV Dynomax Ultra Flo Welded Universal MufflerOver 8500 G.V.W.R. w/ 2.5 Muffler Inlet Dual Outlet If welded assembly, replace all required parts. Regular Duty Muffler. Optional Ultra Flo for 18344Wheel Base 131.5 In. 1 Per Vehicle

1988 GMC K2500 equipped with 5.7L V8 Gas OHV

1

Dynomax Ultra Flo Welded Universal MufflerOver 8500 G.V.W.R. w/ 2.5 Muffler Inlet Dual Outlet If welded assembly, replace all required parts. Regular Duty Muffler. Optional Ultra Flo for 18344Wheel Base 155.5 In.

1988 GMC K2500 equipped with 5.7L V8 Gas OHV Dynomax Ultra Flo Welded Universal MufflerOver 8500 G.V.W.R. w/ 2.5 Muffler Inlet Dual Outlet If welded assembly, replace all required parts. Regular Duty Muffler. Optional Ultra Flo for 18344Wheel Base 155.5 In. 1 Per Vehicle

1988 GMC K2500 equipped with 5.7L V8 Gas OHV

1

Dynomax Ultra Flo Welded Universal MufflerOver 8500 G.V.W.R. w/ 2.5 Muffler Inlet Dual Outlet If welded assembly, replace all required parts. Regular Duty Muffler.Wheel Base 131.5 In.

1988 GMC K2500 equipped with 5.7L V8 Gas OHV Dynomax Ultra Flo Welded Universal MufflerOver 8500 G.V.W.R. w/ 2.5 Muffler Inlet Dual Outlet If welded assembly, replace all required parts. Regular Duty Muffler.Wheel Base 131.5 In. 1 Per Vehicle

1988 GMC K2500 equipped with 5.7L V8 Gas OHV

1

Dynomax Ultra Flo Welded Universal MufflerOver 8500 G.V.W.R. w/ 2.5 Muffler Inlet Dual Outlet If welded assembly, replace all required parts. Regular Duty Muffler.Wheel Base 155.5 In.

1988 GMC K2500 equipped with 5.7L V8 Gas OHV Dynomax Ultra Flo Welded Universal MufflerOver 8500 G.V.W.R. w/ 2.5 Muffler Inlet Dual Outlet If welded assembly, replace all required parts. Regular Duty Muffler.Wheel Base 155.5 In. 1 Per Vehicle

1988 GMC K2500 equipped with 6.2L V8 Diesel OHV, 5.7L V8 Gas OHV

1

Dynomax Ultra Flo Welded Universal Mufflerw/ 2.5 Muffler Inlet If welded assembly, replace all required parts. Up to 8500 G.V.W.R. Optional Ultra Flo for 18344Wheel Base 131.5 In.

1988 GMC K2500 equipped with 6.2L V8 Diesel OHV, 5.7L V8 Gas OHV Dynomax Ultra Flo Welded Universal Mufflerw/ 2.5 Muffler Inlet If welded assembly, replace all required parts. Up to 8500 G.V.W.R. Optional Ultra Flo for 18344Wheel Base 131.5 In. 1 Per Vehicle

1988 GMC K2500 equipped with 6.2L V8 Diesel OHV, 5.7L V8 Gas OHV

1

Dynomax Ultra Flo Welded Universal Mufflerw/ 2.5 Muffler Inlet If welded assembly, replace all required parts. Up to 8500 G.V.W.R. Optional Ultra Flo for 18344Wheel Base 155.5 In.

1988 GMC K2500 equipped with 6.2L V8 Diesel OHV, 5.7L V8 Gas OHV Dynomax Ultra Flo Welded Universal Mufflerw/ 2.5 Muffler Inlet If welded assembly, replace all required parts. Up to 8500 G.V.W.R. Optional Ultra Flo for 18344Wheel Base 155.5 In. 1 Per Vehicle

1988 GMC K2500 equipped with 6.2L V8 Diesel OHV, 5.7L V8 Gas OHV

1

Dynomax Ultra Flo Welded Universal Mufflerw/ 2.5 Muffler Inlet If welded assembly, replace all required parts. Up to 8500 G.V.W.R.Wheel Base 131.5 In.

1988 GMC K2500 equipped with 6.2L V8 Diesel OHV, 5.7L V8 Gas OHV Dynomax Ultra Flo Welded Universal Mufflerw/ 2.5 Muffler Inlet If welded assembly, replace all required parts. Up to 8500 G.V.W.R.Wheel Base 131.5 In. 1 Per Vehicle

1988 GMC K2500 equipped with 6.2L V8 Diesel OHV, 5.7L V8 Gas OHV

1

Dynomax Ultra Flo Welded Universal Mufflerw/ 2.5 Muffler Inlet If welded assembly, replace all required parts. Up to 8500 G.V.W.R.Wheel Base 155.5 In.

1988 GMC K2500 equipped with 6.2L V8 Diesel OHV, 5.7L V8 Gas OHV Dynomax Ultra Flo Welded Universal Mufflerw/ 2.5 Muffler Inlet If welded assembly, replace all required parts. Up to 8500 G.V.W.R.Wheel Base 155.5 In. 1 Per Vehicle

$75.81

1988 GMC K2500 equipped with 5.0L V8 Gas OHV, 4.3L V6 Gas OHV

1

Quiet-Flow SSBelow 8500 (lb) GVW Premium Limited Lifetime Warranty If welded assembly, replace all required parts

1988 GMC K2500 equipped with 5.0L V8 Gas OHV, 4.3L V6 Gas OHV Quiet-Flow SSBelow 8500 (lb) GVW Premium Limited Lifetime Warranty If welded assembly, replace all required parts 1 Per Vehicle

$105.42

1988 GMC K2500 equipped with 5.7L V8 Gas OHV

1

Quiet-Flow SSBelow 8500 (lb) GVW Premium with 3 (in) Muffler Inlet Limited Lifetime Warranty Requires 44461 Or 45344 If welded assembly, replace all required partsWheel Base 131.5 In.

1988 GMC K2500 equipped with 5.7L V8 Gas OHV Quiet-Flow SSBelow 8500 (lb) GVW Premium with 3 (in) Muffler Inlet Limited Lifetime Warranty Requires 44461 Or 45344 If welded assembly, replace all required partsWheel Base 131.5 In. 1 Per Vehicle

1988 GMC K2500 equipped with 5.7L V8 Gas OHV

1

Quiet-Flow SSBelow 8500 (lb) GVW Premium with 3 (in) Muffler Inlet Limited Lifetime Warranty Requires 44461 Or 45344 If welded assembly, replace all required partsWheel Base 155.5 In.

1988 GMC K2500 equipped with 5.7L V8 Gas OHV Quiet-Flow SSBelow 8500 (lb) GVW Premium with 3 (in) Muffler Inlet Limited Lifetime Warranty Requires 44461 Or 45344 If welded assembly, replace all required partsWheel Base 155.5 In. 1 Per Vehicle

1988 GMC K2500 equipped with 6.2L V8 Diesel OHV

1

Quiet-Flow SSBelow 8500 (lb) GVW Premium Replacement Requires Intermediate Pipe with 3 (in) Muffler Inlet Limited Lifetime Warranty If welded assembly, replace all required parts8th VIN Digit: C

1988 GMC K2500 equipped with 6.2L V8 Diesel OHV Quiet-Flow SSBelow 8500 (lb) GVW Premium Replacement Requires Intermediate Pipe with 3 (in) Muffler Inlet Limited Lifetime Warranty If welded assembly, replace all required parts8th VIN Digit: C 1 Per Vehicle

$67.76

1988 GMC K2500 equipped with 5.7L V8 Gas OHV

1

Walker SoundFX Universal Mufflerw/3 Inch Muffler Inlet Replacement requires 44461 or 45344 If welded assembly, replace all required parts. Up to 8500 G.V.W.R. Optional SoundFX Universal for 22719Wheel Base 131.5 In.

1988 GMC K2500 equipped with 5.7L V8 Gas OHV Walker SoundFX Universal Mufflerw/3 Inch Muffler Inlet Replacement requires 44461 or 45344 If welded assembly, replace all required parts. Up to 8500 G.V.W.R. Optional SoundFX Universal for 22719Wheel Base 131.5 In. 1 Per Vehicle

1988 GMC K2500 equipped with 5.7L V8 Gas OHV

1

Walker SoundFX Universal Mufflerw/3 Inch Muffler Inlet Replacement requires 44461 or 45344 If welded assembly, replace all required parts. Up to 8500 G.V.W.R. Optional SoundFX Universal for 22719Wheel Base 155.5 In.

1988 GMC K2500 equipped with 5.7L V8 Gas OHV Walker SoundFX Universal Mufflerw/3 Inch Muffler Inlet Replacement requires 44461 or 45344 If welded assembly, replace all required parts. Up to 8500 G.V.W.R. Optional SoundFX Universal for 22719Wheel Base 155.5 In. 1 Per Vehicle

1988 GMC K2500 equipped with 6.2L V8 Diesel OHV

1

Walker SoundFX Universal Mufflerw/3 Inch Muffler Inlet If welded assembly, replace all required parts. Replacement requires Intermediate Pipe. Up to 8500 G.V.W.R. Optional SoundFX Universal for 22719Wheel Base 131.5 In.

1988 GMC K2500 equipped with 6.2L V8 Diesel OHV Walker SoundFX Universal Mufflerw/3 Inch Muffler Inlet If welded assembly, replace all required parts. Replacement requires Intermediate Pipe. Up to 8500 G.V.W.R. Optional SoundFX Universal for 22719Wheel Base 131.5 In. 1 Per Vehicle

1988 GMC K2500 equipped with 6.2L V8 Diesel OHV

1

Walker SoundFX Universal Mufflerw/3 Inch Muffler Inlet If welded assembly, replace all required parts. Replacement requires Intermediate Pipe. Up to 8500 G.V.W.R. Optional SoundFX Universal for 22719Wheel Base 155.5 In.

1988 GMC K2500 equipped with 6.2L V8 Diesel OHV Walker SoundFX Universal Mufflerw/3 Inch Muffler Inlet If welded assembly, replace all required parts. Replacement requires Intermediate Pipe. Up to 8500 G.V.W.R. Optional SoundFX Universal for 22719Wheel Base 155.5 In. 1 Per Vehicle

1988 GMC K2500 equipped with 6.2L V8 Diesel OHV

Muffler131/155 WB 2-1/2 Inlet Or {22511} Ultra-Flo Under 8500 GVW VIN: C, MFI, Natural

1988 GMC K2500 equipped with 6.2L V8 Diesel OHV Muffler131/155 WB 2-1/2 Inlet Or {22511} Ultra-Flo Under 8500 GVW VIN: C, MFI, Natural

1988 GMC K2500 equipped with 5.7L V8 Gas OHV

Muffler131/155 WB 2-1/2 Inlet Or {22511} Ultra-Flo VIN: K, TBI, Natural

1988 GMC K2500 equipped with
5.0L V8 Gas OHV,
4.3L V6 Gas OHV

Dynomax Ultra Flo Welded Universal Muffler
Under 8500 G.V.W.R.
If welded assembly, replace all required parts.
Optional
Ultra Flo for 22512

1988 GMC K2500 equipped with
5.0L V8 Gas OHV,
4.3L V6 Gas OHV Dynomax Ultra Flo Welded Universal Muffler
Under 8500 G.V.W.R.
If welded assembly, replace all required parts.
Optional
Ultra Flo for 22512

1 Per Vehicle

1988 GMC K2500 equipped with
5.7L V8 Gas OHV

Dynomax Ultra Flo Welded Universal Muffler
Over 8500 G.V.W.R.
w/ 2.5 Muffler Inlet
Dual Outlet
If welded assembly, replace all required parts.
Regular Duty Muffler.
Optional
Ultra Flo for 18344
Wheel Base 131.5 In.

1988 GMC K2500 equipped with
5.7L V8 Gas OHV Dynomax Ultra Flo Welded Universal Muffler
Over 8500 G.V.W.R.
w/ 2.5 Muffler Inlet
Dual Outlet
If welded assembly, replace all required parts.
Regular Duty Muffler.
Optional
Ultra Flo for 18344
Wheel Base 131.5 In.

1 Per Vehicle

1988 GMC K2500 equipped with
5.7L V8 Gas OHV

Dynomax Ultra Flo Welded Universal Muffler
Over 8500 G.V.W.R.
w/ 2.5 Muffler Inlet
Dual Outlet
If welded assembly, replace all required parts.
Regular Duty Muffler.
Optional
Ultra Flo for 18344
Wheel Base 155.5 In.

1988 GMC K2500 equipped with
5.7L V8 Gas OHV Dynomax Ultra Flo Welded Universal Muffler
Over 8500 G.V.W.R.
w/ 2.5 Muffler Inlet
Dual Outlet
If welded assembly, replace all required parts.
Regular Duty Muffler.
Optional
Ultra Flo for 18344
Wheel Base 155.5 In.

1 Per Vehicle

1988 GMC K2500 equipped with
5.7L V8 Gas OHV

Dynomax Ultra Flo Welded Universal Muffler
Over 8500 G.V.W.R.
w/ 2.5 Muffler Inlet
Dual Outlet
If welded assembly, replace all required parts.
Regular Duty Muffler.
Wheel Base 131.5 In.

1988 GMC K2500 equipped with
5.7L V8 Gas OHV Dynomax Ultra Flo Welded Universal Muffler
Over 8500 G.V.W.R.
w/ 2.5 Muffler Inlet
Dual Outlet
If welded assembly, replace all required parts.
Regular Duty Muffler.
Wheel Base 131.5 In.

1 Per Vehicle

1988 GMC K2500 equipped with
5.7L V8 Gas OHV

Dynomax Ultra Flo Welded Universal Muffler
Over 8500 G.V.W.R.
w/ 2.5 Muffler Inlet
Dual Outlet
If welded assembly, replace all required parts.
Regular Duty Muffler.
Wheel Base 155.5 In.

1988 GMC K2500 equipped with
5.7L V8 Gas OHV Dynomax Ultra Flo Welded Universal Muffler
Over 8500 G.V.W.R.
w/ 2.5 Muffler Inlet
Dual Outlet
If welded assembly, replace all required parts.
Regular Duty Muffler.
Wheel Base 155.5 In.

1 Per Vehicle

1988 GMC K2500 equipped with
6.2L V8 Diesel OHV,
5.7L V8 Gas OHV

Dynomax Ultra Flo Welded Universal Muffler
w/ 2.5 Muffler Inlet
If welded assembly, replace all required parts.
Up to 8500 G.V.W.R.
Optional
Ultra Flo for 18344
Wheel Base 131.5 In.

1988 GMC K2500 equipped with
6.2L V8 Diesel OHV,
5.7L V8 Gas OHV Dynomax Ultra Flo Welded Universal Muffler
w/ 2.5 Muffler Inlet
If welded assembly, replace all required parts.
Up to 8500 G.V.W.R.
Optional
Ultra Flo for 18344
Wheel Base 131.5 In.

1 Per Vehicle

1988 GMC K2500 equipped with
6.2L V8 Diesel OHV,
5.7L V8 Gas OHV

Dynomax Ultra Flo Welded Universal Muffler
w/ 2.5 Muffler Inlet
If welded assembly, replace all required parts.
Up to 8500 G.V.W.R.
Optional
Ultra Flo for 18344
Wheel Base 155.5 In.

1988 GMC K2500 equipped with
6.2L V8 Diesel OHV,
5.7L V8 Gas OHV Dynomax Ultra Flo Welded Universal Muffler
w/ 2.5 Muffler Inlet
If welded assembly, replace all required parts.
Up to 8500 G.V.W.R.
Optional
Ultra Flo for 18344
Wheel Base 155.5 In.

1 Per Vehicle

1988 GMC K2500 equipped with
6.2L V8 Diesel OHV,
5.7L V8 Gas OHV

Dynomax Ultra Flo Welded Universal Muffler
w/ 2.5 Muffler Inlet
If welded assembly, replace all required parts.
Up to 8500 G.V.W.R.
Wheel Base 131.5 In.

1988 GMC K2500 equipped with
6.2L V8 Diesel OHV,
5.7L V8 Gas OHV Dynomax Ultra Flo Welded Universal Muffler
w/ 2.5 Muffler Inlet
If welded assembly, replace all required parts.
Up to 8500 G.V.W.R.
Wheel Base 131.5 In.

1 Per Vehicle

1988 GMC K2500 equipped with
6.2L V8 Diesel OHV,
5.7L V8 Gas OHV

Dynomax Ultra Flo Welded Universal Muffler
w/ 2.5 Muffler Inlet
If welded assembly, replace all required parts.
Up to 8500 G.V.W.R.
Wheel Base 155.5 In.

1988 GMC K2500 equipped with
6.2L V8 Diesel OHV,
5.7L V8 Gas OHV Dynomax Ultra Flo Welded Universal Muffler
w/ 2.5 Muffler Inlet
If welded assembly, replace all required parts.
Up to 8500 G.V.W.R.
Wheel Base 155.5 In.

1 Per Vehicle

1988 GMC K2500 equipped with
5.0L V8 Gas OHV,
4.3L V6 Gas OHV

Quiet-Flow SS
Below 8500 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts

1988 GMC K2500 equipped with
5.0L V8 Gas OHV,
4.3L V6 Gas OHV Quiet-Flow SS
Below 8500 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts

1 Per Vehicle

1988 GMC K2500 equipped with
5.7L V8 Gas OHV

Quiet-Flow SS
Below 8500 (lb) GVW
Premium
with 3 (in) Muffler Inlet
Limited Lifetime Warranty
Requires 44461 Or 45344
If welded assembly, replace all required parts
Wheel Base 131.5 In.

1988 GMC K2500 equipped with
5.7L V8 Gas OHV Quiet-Flow SS
Below 8500 (lb) GVW
Premium
with 3 (in) Muffler Inlet
Limited Lifetime Warranty
Requires 44461 Or 45344
If welded assembly, replace all required parts
Wheel Base 131.5 In.

1 Per Vehicle

1988 GMC K2500 equipped with
5.7L V8 Gas OHV

Quiet-Flow SS
Below 8500 (lb) GVW
Premium
with 3 (in) Muffler Inlet
Limited Lifetime Warranty
Requires 44461 Or 45344
If welded assembly, replace all required parts
Wheel Base 155.5 In.

1988 GMC K2500 equipped with
5.7L V8 Gas OHV Quiet-Flow SS
Below 8500 (lb) GVW
Premium
with 3 (in) Muffler Inlet
Limited Lifetime Warranty
Requires 44461 Or 45344
If welded assembly, replace all required parts
Wheel Base 155.5 In.

1 Per Vehicle

1988 GMC K2500 equipped with
6.2L V8 Diesel OHV

Quiet-Flow SS
Below 8500 (lb) GVW
Premium
Replacement Requires Intermediate Pipe
with 3 (in) Muffler Inlet
Limited Lifetime Warranty
If welded assembly, replace all required parts
8th VIN Digit: C

1988 GMC K2500 equipped with
6.2L V8 Diesel OHV Quiet-Flow SS
Below 8500 (lb) GVW
Premium
Replacement Requires Intermediate Pipe
with 3 (in) Muffler Inlet
Limited Lifetime Warranty
If welded assembly, replace all required parts
8th VIN Digit: C

1 Per Vehicle

1988 GMC K2500 equipped with
5.7L V8 Gas OHV

Walker SoundFX Universal Muffler
w/3 Inch Muffler Inlet
Replacement requires 44461 or 45344
If welded assembly, replace all required parts.
Up to 8500 G.V.W.R.
Optional
SoundFX Universal for 22719
Wheel Base 131.5 In.

1988 GMC K2500 equipped with
5.7L V8 Gas OHV Walker SoundFX Universal Muffler
w/3 Inch Muffler Inlet
Replacement requires 44461 or 45344
If welded assembly, replace all required parts.
Up to 8500 G.V.W.R.
Optional
SoundFX Universal for 22719
Wheel Base 131.5 In.

1 Per Vehicle

1988 GMC K2500 equipped with
5.7L V8 Gas OHV

Walker SoundFX Universal Muffler
w/3 Inch Muffler Inlet
Replacement requires 44461 or 45344
If welded assembly, replace all required parts.
Up to 8500 G.V.W.R.
Optional
SoundFX Universal for 22719
Wheel Base 155.5 In.

1988 GMC K2500 equipped with
5.7L V8 Gas OHV Walker SoundFX Universal Muffler
w/3 Inch Muffler Inlet
Replacement requires 44461 or 45344
If welded assembly, replace all required parts.
Up to 8500 G.V.W.R.
Optional
SoundFX Universal for 22719
Wheel Base 155.5 In.

1 Per Vehicle

1988 GMC K2500 equipped with
6.2L V8 Diesel OHV

Walker SoundFX Universal Muffler
w/3 Inch Muffler Inlet
If welded assembly, replace all required parts.
Replacement requires Intermediate Pipe.
Up to 8500 G.V.W.R.
Optional
SoundFX Universal for 22719
Wheel Base 131.5 In.

1988 GMC K2500 equipped with
6.2L V8 Diesel OHV Walker SoundFX Universal Muffler
w/3 Inch Muffler Inlet
If welded assembly, replace all required parts.
Replacement requires Intermediate Pipe.
Up to 8500 G.V.W.R.
Optional
SoundFX Universal for 22719
Wheel Base 131.5 In.

1 Per Vehicle

1988 GMC K2500 equipped with
6.2L V8 Diesel OHV

Walker SoundFX Universal Muffler
w/3 Inch Muffler Inlet
If welded assembly, replace all required parts.
Replacement requires Intermediate Pipe.
Up to 8500 G.V.W.R.
Optional
SoundFX Universal for 22719
Wheel Base 155.5 In.

1988 GMC K2500 equipped with
6.2L V8 Diesel OHV Walker SoundFX Universal Muffler
w/3 Inch Muffler Inlet
If welded assembly, replace all required parts.
Replacement requires Intermediate Pipe.
Up to 8500 G.V.W.R.
Optional
SoundFX Universal for 22719
Wheel Base 155.5 In.

1 Per Vehicle

1988 GMC K2500 equipped with
6.2L V8 Diesel OHV

Muffler
131/155 WB
2-1/2 Inlet
Or {22511}
Ultra-Flo
Under 8500 GVW
VIN: C, MFI, Natural

1988 GMC K2500 equipped with
6.2L V8 Diesel OHV Muffler
131/155 WB
2-1/2 Inlet
Or {22511}
Ultra-Flo
Under 8500 GVW
VIN: C, MFI, Natural

1988 GMC K2500 equipped with
5.7L V8 Gas OHV

Muffler
131/155 WB
2-1/2 Inlet
Or {22511}
Ultra-Flo
VIN: K, TBI, Natural

1988 GMC K2500 equipped with
5.7L V8 Gas OHV Muffler
131/155 WB
2-1/2 Inlet
Or {22511}
Ultra-Flo
VIN: K, TBI, Natural

1988 GMC K2500 equipped with
5.0L V8 Gas OHV,
4.3L V6 Gas OHV

Dynomax Super Turbo Universal Muffler
Under 8500 G.V.W.R.
If welded assembly, replace all required parts.
Optional
Super Turbo for 22512

1988 GMC K2500 equipped with
5.0L V8 Gas OHV,
4.3L V6 Gas OHV Dynomax Super Turbo Universal Muffler
Under 8500 G.V.W.R.
If welded assembly, replace all required parts.
Optional
Super Turbo for 22512

1 Per Vehicle

1988 GMC K2500 equipped with
6.2L V8 Diesel OHV

Muffler
141 WB
2-1/2 Inlet
Or {22171}
Super Turbo
Under 8500 GVW
VIN: C, MFI, Natural

1988 GMC K2500 equipped with
6.2L V8 Diesel OHV Muffler
141 WB
2-1/2 Inlet
Or {22171}
Super Turbo
Under 8500 GVW
VIN: C, MFI, Natural

1988 GMC K2500 equipped with
5.7L V8 Gas OHV

Muffler
141 WB
2-1/2 Inlet
Or {22171}
Super Turbo
Under 8500 GVW
VIN: K, TBI, Natural

1988 GMC K2500 equipped with
5.7L V8 Gas OHV Muffler
141 WB
2-1/2 Inlet
Or {22171}
Super Turbo
Under 8500 GVW
VIN: K, TBI, Natural

1988 GMC K2500 equipped with
6.2L V8 Diesel OHV

Muffler
131/155 WB
2-1/2 Inlet
Or {22511}
Super Turbo
Under 8500 GVW
VIN: C, MFI, Natural

1988 GMC K2500 equipped with
6.2L V8 Diesel OHV Muffler
131/155 WB
2-1/2 Inlet
Or {22511}
Super Turbo
Under 8500 GVW
VIN: C, MFI, Natural

1988 GMC K2500 equipped with
5.7L V8 Gas OHV

Muffler
131/155 WB
2-1/2 Inlet
Or {22511}
Super Turbo
VIN: K, TBI, Natural

1988 GMC K2500 equipped with
5.7L V8 Gas OHV Muffler
131/155 WB
2-1/2 Inlet
Or {22511}
Super Turbo
VIN: K, TBI, Natural

1988 GMC K2500 equipped with
5.7L V8 Gas OHV

SoundFX Universal
Below 8500 (lb) GVW
with 2.5 (in) Muffler Inlet
Modifications and/or Additional Parts May Be Required for Installation
Wheel Base 131.5 In.

1988 GMC K2500 equipped with
5.7L V8 Gas OHV SoundFX Universal
Below 8500 (lb) GVW
with 2.5 (in) Muffler Inlet
Modifications and/or Additional Parts May Be Required for Installation
Wheel Base 131.5 In.

1 Per Vehicle

1988 GMC K2500 equipped with
5.7L V8 Gas OHV

SoundFX Universal
Below 8500 (lb) GVW
with 2.5 (in) Muffler Inlet
Modifications and/or Additional Parts May Be Required for Installation
Wheel Base 155.5 In.

1988 GMC K2500 equipped with
5.7L V8 Gas OHV SoundFX Universal
Below 8500 (lb) GVW
with 2.5 (in) Muffler Inlet
Modifications and/or Additional Parts May Be Required for Installation
Wheel Base 155.5 In.

1 Per Vehicle

1988 GMC K2500 equipped with
5.7L V8 Gas OHV

SoundFX Universal
Below 8500 (lb) GVW
with 3 (in) Muffler Inlet
Requires 44461 Or 45344
Requires 35667 And Two 35564
Modifications and/or Additional Parts May Be Required for Installation
Wheel Base 131.5 In.