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  • Bosal
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  • Walker Exhaust
    Walker Exhaust

Best Selling Genuine Gmc Exhausts

  • We Stock the following top leading brands, including Walker Exhaust
  • Constantly Updated Inventory of Gmc Replacement Exhaust Parts

We stock Exhaust parts for most Gmc models, including Envoy, Jimmy, Sierra 1500, Sierra 2500, Sierra 2500 HD, Sonoma, Terrain, Yukon, Yukon XL 1500.


Walker Exhaust
1997 GMC Yukon Exhaust System Kit 8 Cyl 5.7L Walker Exhaust - Dynomax Super Turbo Single System

P311-1956637    17349  New

Qty:
In Stock & Ready to Ship
$446.48
Walker Exhaust Exhaust System Kit
  • Super Turbo Exhaust System Kit
  • Dynomax Super Turbo 17349 Exhaust System Kit
  • Dynomax Super Turbo Single System
  • Product Attributes:
    • Bend Type: Mandrel
    • Body Finish: Aluminized
    • Body Length: 16
    • Catalytic Converter Included: No
    • Clamp Count: 2
    • Clamp Type: U-bolt
    • Exit Location: Angle
    • Grade Type: Performance
    • Inlet Quantity: 1
    • Kit Contents:
      • Flanged Y-intermediate Pipe, 3" Tail Pipe W/ Stainless Steel Spout & All Necessary Gaskets & Clamps.
      • Intermediate Pipe, Muffler, Tail Pipe, Gasket, Clamps
    • Mounting Hardware Included: Yes
    • Muffler Finish: Aluminized
    • Muffler Material: Steel
    • Muffler Quantity: 1
    • Muffler Type Included: Super Turbo
    • Outlet Quantity: 1
    • Oxygen Sensor Bung Included: No
    • Pipe Diameter: 3
    • Pipe Finish: Aluminized
    • Pipe Material: Steel
    • System Style: Cat Back
    • System Type: Single
    • Tip Cut: Angle
    • Tip Edge Style: Non-rolled
    • Tip Finish: Polished
    • Tip Outlet Size: 3
    • Tip Quantity: 1
    • Tip Shape: Round
  • DynoMax® Super Turbo™ performance mufflers exclusive patented flow director design channels exhaust flow and eliminates turbulence on most applications. The large internal flow tubes improve exhaust flow and reduce backpressure. Each muffler uses fiberglass matting technology to absorb unwanted interior resonance while maintaining a mellow performance tone. The 'Pure Unadulterated POWER' of DynoMax® Super Turbo™ mufflers are backed by a Limited Lifetime Warranty and exclusive 90-Day Performance & Sound Guarantee™. All Dynomax® Performance Exhaust Systems bolt on for easy installation. Your vehicle's complete exhaust can be quickly and easily customized with an emissions-legal premium performance system from Dynomax®.
Brand: Walker Exhaust
Additional Fitment Information:
Vehicle Doors Block Engine CID CC
1997 - GMC Yukon 4 V 8 Cyl 5.7L 350 -
Walker Exhaust
1999 GMC Yukon Exhaust System Kit 8 Cyl 5.7L Walker Exhaust - Dynomax Super Turbo Single System

P311-1956637    17349  New

Qty:
In Stock & Ready to Ship
$446.48
Walker Exhaust Exhaust System Kit
  • Super Turbo Exhaust System Kit
  • with Federal Emission System
  • Dynomax Super Turbo 17349 Exhaust System Kit
  • Dynomax Super Turbo Single System
  • Product Attributes:
    • Bend Type: Mandrel
    • Body Finish: Aluminized
    • Body Length: 16
    • Catalytic Converter Included: No
    • Clamp Count: 2
    • Clamp Type: U-bolt
    • Exit Location: Angle
    • Grade Type: Performance
    • Inlet Quantity: 1
    • Kit Contents:
      • Flanged Y-intermediate Pipe, 3" Tail Pipe W/ Stainless Steel Spout & All Necessary Gaskets & Clamps.
      • Intermediate Pipe, Muffler, Tail Pipe, Gasket, Clamps
    • Mounting Hardware Included: Yes
    • Muffler Finish: Aluminized
    • Muffler Material: Steel
    • Muffler Quantity: 1
    • Muffler Type Included: Super Turbo
    • Outlet Quantity: 1
    • Oxygen Sensor Bung Included: No
    • Pipe Diameter: 3
    • Pipe Finish: Aluminized
    • Pipe Material: Steel
    • System Style: Cat Back
    • System Type: Single
    • Tip Cut: Angle
    • Tip Edge Style: Non-rolled
    • Tip Finish: Polished
    • Tip Outlet Size: 3
    • Tip Quantity: 1
    • Tip Shape: Round
  • DynoMax® Super Turbo™ performance mufflers exclusive patented flow director design channels exhaust flow and eliminates turbulence on most applications. The large internal flow tubes improve exhaust flow and reduce backpressure. Each muffler uses fiberglass matting technology to absorb unwanted interior resonance while maintaining a mellow performance tone. The 'Pure Unadulterated POWER' of DynoMax® Super Turbo™ mufflers are backed by a Limited Lifetime Warranty and exclusive 90-Day Performance & Sound Guarantee™. All Dynomax® Performance Exhaust Systems bolt on for easy installation. Your vehicle's complete exhaust can be quickly and easily customized with an emissions-legal premium performance system from Dynomax®.
Brand: Walker Exhaust
Additional Fitment Information:
Vehicle Block Engine CID CC
1999 - GMC Yukon V 8 Cyl 5.7L 350 -
Walker Exhaust
1999 GMC Jimmy Exhaust System Kit 6 Cyl 4.3L Walker Exhaust - Dynomax Super Turbo Single System

P311-431375D    17366  New

Qty:
In Stock & Ready to Ship
$204.53
Walker Exhaust Exhaust System Kit
  • Super Turbo Exhaust System Kit
  • Dynomax Super Turbo 17366 Exhaust System Kit
  • Dynomax Super Turbo Single System
  • Product Attributes:
    • Bend Type: Mandrel
    • Body Finish: Aluminized
    • Body Length: 16
    • Catalytic Converter Included: No
    • Clamp Count: 2
    • Clamp Type: U-bolt
    • Exit Location: Rear
    • Grade Type: Performance
    • Inlet Quantity: 1
    • Kit Contents:
      • Flanged Intermediate Pipe, Muffler, Tail Pipe, Clamps, Gasket
      • Intermediate Pipe W/ Welded Inlet Flange, Tail Pipe & All Necessary Gaskets, Brackets & Clamps.
    • Mounting Hardware Included: Yes
    • Muffler Finish: Aluminized
    • Muffler Material: Steel
    • Muffler Quantity: 1
    • Muffler Type Included: Super Turbo
    • Outlet Quantity: 1
    • Oxygen Sensor Bung Included: No
    • Pipe Diameter:
      • 2.5
      • 2.500
    • Pipe Finish: Aluminized
    • Pipe Material: Steel
    • System Style: Cat Back
    • System Type: Single
    • Tip Cut: Angle
    • Tip Edge Style: Non-rolled
    • Tip Finish: Aluminized
    • Tip Material: Steel
    • Tip Outlet Size: 2.5
    • Tip Shape: Round
  • DynoMax® Super Turbo™ performance mufflers exclusive patented flow director design channels exhaust flow and eliminates turbulence on most applications. The large internal flow tubes improve exhaust flow and reduce backpressure. Each muffler uses fiberglass matting technology to absorb unwanted interior resonance while maintaining a mellow performance tone. The 'Pure Unadulterated POWER' of DynoMax® Super Turbo™ mufflers are backed by a Limited Lifetime Warranty and exclusive 90-Day Performance & Sound Guarantee™. All Dynomax® Performance Exhaust Systems bolt on for easy installation. Your vehicle's complete exhaust can be quickly and easily customized with an emissions-legal premium performance system from Dynomax®.
Brand: Walker Exhaust
Additional Fitment Information:
Vehicle Doors Block Engine CID CC
1999 - GMC Jimmy 4 V 6 Cyl 4.3L 262 -
Walker Exhaust
2002 GMC Sonoma Exhaust System Kit 6 Cyl 4.3L Walker Exhaust - Dynomax Ultra Flo Welded Single System

P311-0647789    19399  New

Qty:
In Stock & Ready to Ship
$278.42
Walker Exhaust Exhaust System Kit
  • Ultra Flo Exhaust System Kit
  • with Wide Stance Package
  • Dynomax Ultra Flo 19399 Exhaust System Kit
  • Dynomax Ultra Flo Welded Single System
  • Product Attributes:
    • Bend Type: Mandrel
    • Body Finish: Natural
    • Body Length: 14
    • Catalytic Converter Included: No
    • Clamp Count: 2
    • Clamp Type: U-bolt
    • Exit Location: Angle
    • Grade Type: Performance
    • Inlet Quantity: 1
    • Kit Contents:
      • All Pipes, Muffler, Clamps, Hangers, & Gaskets Included As Required.
      • Flanged Intermediate Pipe, Muffler, Tail Pipe, Clamps, Gasket
    • Mounting Hardware Included: Yes
    • Muffler Count: 1
    • Muffler Finish: Bare
    • Muffler Quantity: 1
    • Muffler Type Included: Ultra Flo Welded
    • Outlet Quantity: 1
    • Oxygen Sensor Bung Included: No
    • Pipe Diameter:
      • 2.5
      • 2.500
    • Pipe Finish: Aluminized
    • Pipe Material: Steel
    • Single or Dual: Single
    • System Style: Cat Back
    • System Type: Single
    • Tip Cut: Angle
    • Tip Edge Style: Non-rolled
    • Tip Finish: Aluminized
    • Tip Material: Steel
    • Tip Outlet Size: 2.5
    • Tip Shape: Round
  • DynoMax® Ultra Flo™ Welded performance stainless steel mufflers feature 100-percent welded construction for lifelong durability. The unrestricted, straight-through design dyno proven to flow up to 2,000 SCFM and support up to 2,000 horsepower. Each muffler uses our exclusive Continuous Roving Fiberglass (CRF) Technology to absorb unwanted interior resonance while maintaining a deep performance tone. The 'Pure Unadulterated POWER' of DynoMax® Ultra Flo™ Welded mufflers are backed by a Limited Lifetime Warranty and exclusive 90-Day Performance & Sound Guarantee™. All Dynomax® Performance Exhaust Systems bolt on for easy installation. Your vehicle's complete exhaust can be quickly and easily customized with an emissions-legal premium performance system from Dynomax®.
Brand: Walker Exhaust
Additional Fitment Information:
Vehicle Submodel Drive Type Wheel FeedBase Block Engine CID CC
2002 - GMC Sonoma SLS 4WD 122.9 V 6 Cyl 4.3L 262 -
Walker Exhaust
1999 GMC Sierra 1500 Exhaust System Kit 6 Cyl 4.3L Walker Exhaust - Dynomax Ultra Flo Welded Single System

P311-1035350    39311  New

Qty:
In Stock & Ready to Ship
$458.44
Walker Exhaust Exhaust System Kit
  • Ultra Flo Exhaust System Kit
  • Ultra Flo Welded System Under 8600 (lb) GVW with Single Exhaust
  • Dynomax Ultra Flo 39311 Exhaust System Kit
  • Dynomax Ultra Flo Welded Single System
  • Product Attributes:
    • Bend Type: Mandrel
    • Body Finish: Natural
    • Body Length: 16
    • Catalytic Converter Included: No
    • Clamp Count: 2
    • Clamp Type: Band
    • Exit Location: Angle
    • Grade Type: Performance
    • Inlet Quantity: 1
    • Kit Contents: Intermediate Pipe, Muffler, Tail Pipe, Clamps
    • Mounting Hardware Included: Yes
    • Muffler Count: 1
    • Muffler Finish: Bare
    • Muffler Quantity: 1
    • Muffler Type Included: Ultra Flo Welded
    • Outlet Quantity: 1
    • Oxygen Sensor Bung Included: No
    • Pipe Diameter: 3
    • Pipe Finish: Natural
    • Single or Dual: Single
    • System Style: Cat Back
    • System Type:
      • Cat Back
      • Single
    • Tip Cut: Angle
    • Tip Edge Style: Non-rolled
    • Tip Finish: Polished
    • Tip Outlet Size: 3
    • Tip Shape: Round
  • DynoMax® Ultra Flo™ Welded performance stainless steel mufflers feature 100-percent welded construction for lifelong durability. The unrestricted, straight-through design dyno proven to flow up to 2,000 SCFM and support up to 2,000 horsepower. Each muffler uses our exclusive Continuous Roving Fiberglass (CRF) Technology to absorb unwanted interior resonance while maintaining a deep performance tone. The 'Pure Unadulterated POWER' of DynoMax® Ultra Flo™ Welded mufflers are backed by a Limited Lifetime Warranty and exclusive 90-Day Performance & Sound Guarantee™. All Dynomax® Performance Exhaust Systems bolt on for easy installation. Your vehicle's complete exhaust can be quickly and easily customized with an emissions-legal premium performance system from Dynomax®.
Brand: Walker Exhaust
Additional Fitment Information:
Vehicle Wheel FeedBase Block Engine CID CC
1999 - GMC Sierra 1500 143.5 V 6 Cyl 4.3L 262 -

Latest Car Advice

CarJunky AutoAdvice

Starter 1991 GMC

Showing 2 out of 2 Posts
Question From bedell47 on Starter 1991 GMC

I have a 1991 GMC Jimmy that I need to put a new starter on. My question is will it drop straight down or do I need to remove the crossover exhaust pipe or jack the motor up a little. It is a 4.3 v6 4 wheel drive 2 door vehicle. I have been both by friends and was just wondering if anyone knows for sure before I start. Thanks Chip

Response From Jeff Norfolk Top Rated Answer

It will come out with out removing exhaust. It takes a bit of fanagiling but it will come out.

Just a side not: Be sure to disconnect the battery before you start the job.

1984 GMC Pickup Backfires

Showing 2 out of 5 Posts | Show 3 Hidden Posts
Question From Gmconyx on 1984 GMC Pickup Backfires

1984 GMC Pickup backfires when i left off the gas on the freeway. Even in my driveway the pickup backfire when i rev it up. It backfires so bad that my catalitic converter blew.

Response From PTEC

explain to me what is a backfire and how can you tell if it is a backfire, then i will see what i can do for you.

Response From Gmconyx

The truck backfired and blew the catalitic converter and the muffler expanded them. The sound that the truck makes is that of a canon going off. On the freeway, when I let go of the gas you can hear a big boom and feel like a big firecracker just blew under your ass.

Response From black bear Top Rated Answer

if you have a large enough exhaust leak it will back fire

Response From steve01832

Start with a compression test across the board. If it is low on all cylinders, check the timing chain to see if it jumped or has excessive slack in it. If your vehicle has an air pump and it is operational, make sure the solenoid is diverting the air in closed loop. If it is sending the air downstream you will have the makings for heavy combustion in the converter. One way to check this is to pinch off the hose at the air pump that goes to the converter and drive the truck. If the backfire stops, you know which system has failed. Good luck and keep us posted on what you find.

Steve

Timing a 1995 GMC C2500 7.4 L.

Showing 3 out of 4 Posts | Show 1 Hidden Posts
Question From Steve F. on Timing a 1995 GMC C2500 7.4 L.

I cannot find, after exhaustive searching, the EST connector, on my 95 GMC 7.4L, in order to check the timing, can I jump the ADL link, instead, if so, which pins, Thank You.

Response From Discretesignals

Put the IC system in the bypass mode by disconnecting the "set timing" connector. This is a single wire sealed connector that has a tan with black stripe lead. This connector breaks out of the wiring harness below the heater case in the passenger compartment.

Base timing is 4 degrees BTDC.

Jumping the ALDL won't put the ignition control module into base mode.

Response From Steve F. Top Rated Answer

I know it's supposed to, but like I said, I just cant find it there.

Response From Hammer Time


2000 gmc jimmy p0300 code

Showing 2 out of 2 Posts
Question From barstowjohn on 2000 gmc jimmy p0300 code

I have a 2000 gmc jimmy that wants to start sometimes and others it wont. When it is running it idles and drives fine untill about 55mph. I did a solid tune up so cap rotor, pcv, airflow sensor. fuel pump seems to be working fine but i lose power and can hear the engine missing at about 55, HELP...

Response From Hammer Time Top Rated Answer

Check it for restriction in the exhaust and test the fuel pressure.

91 GMC

Showing 2 out of 6 Posts | Show 4 Hidden Posts
Question From ednoid on 91 GMC

Hi. I have a '91 GMC 1500 w/5.7 It starts no problem, but when excellerating it will pop, like a back fire, then runs like it fouled a plug. I've changed the injecters in the TBI, checked vacuum lines, tested the EGR valve the old fassioned way...rev the motor and see if the diaphram moves. Plugs are new. Good wires...etc. Any idea? It almost seems like vacuum advance isn't funtioning properly, but not sure how to check.

Any help would be appreciated.

Response From Discretesignals Top Rated Answer

Does it backfire out the exhaust or intake?

Response From ednoid

Not sure, but thinking intake. It's more of a sputter, pop, like it wants to die thing.

Response From Discretesignals

It might be a lean back fire on acceleration. Have you watched your fuel pressure when you accelerate to see if it drops out from lack of volume?

If you have a scan tool or volt meter, you can watch the O2 sensor voltage with the O2 hot and working. The voltage should peg at .9 volts (rich), when you get on it. If the O2 voltage doesn't peg, you don't have enough fuel getting into the combustion chambers.

You could have an ignition problem, but most the time ignition problems cause a backfire out the exhaust.

Another possibility is a leaking intake or exhaust valve under high pressure. Pressure in the cylinders is really high under WOT (wide open throttle) acceleration.

Response From ednoid

It only does it while driving, not while in neutral, so I don't know if I can test the O2 censor. I do hear a ticking. Sounds like a valve or lifter. I thought it was the header leaking, but thinking the former now. Thanks for the help and for spelling acceleration. I thought I was spelling that wrong.

Response From Tom Greenleaf

Just a thought - did you maybe drop any spark plugs when putting new ones in?

T