How to replace the muffler on GMC Envoy?

Proper vehicle elevation through support becomes essential before beginning Muffler replacement. All exhausted system parts requiring replacement must be new because damaged or corroded components are unfit for reuse. Vehicle owners must order both the resonator and tailpipe for vehicles using the ll8 engine system although these components may be clamped together. Start by evaluating exhaust system components for reuse and detach the frame brace. Begin by removing the nuts fixing the Muffler to the catalytic converter pipe then extract the Muffler from the tailpipe assembly at its hanger insulators. Drop the Muffler-tailpipe assembly before cutting through the Exhaust Pipe while supported at the exhaust system. Remove the Muffler from tailpipe following this procedure. During installation position the new Muffler onto the tailpipe pipe and lock it into position by connecting it to the hanger insulators while strictly following the fastener recommendation. Fasten the Muffler to the catalytic converter through nuts that require torque of 45 n.m (33 lb ft). Attach the clamp loosely to secure the Muffler onto the tailpipe followed by tailpipe alignment before tightening clamp nuts to 50 n.m (37 lb ft). The final steps require leak testing of the exhaust system and installing the frame brace and lowering the vehicle back to its original position.

OEM GMC Envoy Muffler

Exhaust Muffler

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12 Mufflers found

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GMC Envoy Muffler W/Tpipe Part Number: 25887916
$746.18 MSRP: $1120.61
You Save: $374.43 (34%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Muffler Assembly-Exhaust (W/Resonator, Exhaust & Tail Pipe; Exhaust Pipe; Muffler; Muffler, Exhaust Tail Pipe; Muffler, Exhaust
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2009 GMC Envoy | SLE, SLT | 6 Cyl 4.2 L GAS
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GMC Envoy Muffler Part Number: 15847573
$774.88 MSRP: $1163.72
You Save: $388.84 (34%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Muffler Assembly-Exhaust (W/Resonator, Exhaust & Tail Pipe; Muffler, Exhaust Tail Pipe; Muffler, Exhaust
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006 GMC Envoy | SLE, SLT | 6 Cyl 4.2 L GAS
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GMC Envoy Muffler W/Tpipe Part Number: 25839185
Product Specifications
- Other Name: Muffler Assembly-Exhaust (W/Resonator, Exhaust & Tail Pipe; Exhaust Pipe; Muffler; Muffler, Exhaust Tail Pipe; Muffler, Exhaust
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2009 GMC Envoy | Denali | 8 Cyl 5.3 L GAS
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GMC Envoy Muffler W/Tpipe Part Number: 25839184
Product Specifications
- Other Name: Muffler Assembly-Exhaust (W/Resonator, Exhaust & Tail Pipe; Exhaust Pipe; Muffler
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2008 GMC Envoy | Denali | 8 Cyl 5.3 L GAS
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GMC Envoy Muffler W/Tpipe Part Number: 25887919
Product Specifications
- Other Name: Muffler Assembly-Exhaust (W/Resonator, Exhaust & Tail Pipe; Direct-Fit Exhaust; Exhaust System Kit; Exhaust Pipe; Muffler; Muffler, Exhaust Tail Pipe; Muffler, Exhaust
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2009 GMC Envoy | SLE, SLT | 6 Cyl 4.2 L GAS
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GMC Envoy Muffler W/Tpipe Part Number: 25839182
Product Specifications
- Other Name: Muffler Assembly-Exhaust (W/Resonator, Exhaust & Tail Pipe; Exhaust Pipe; Muffler; Muffler, Exhaust Tail Pipe; Muffler, Exhaust
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2009 GMC Envoy | Denali | 8 Cyl 5.3 L GAS
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GMC Envoy Muffler W/Tpipe Part Number: 25839181
Product Specifications
- Other Name: Muffler Assembly-Exhaust (W/Resonator, Exhaust & Tail Pipe; Exhaust Pipe; Muffler; Muffler, Exhaust Tail Pipe; Muffler, Exhaust
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2009 GMC Envoy | Denali | 8 Cyl 5.3 L GAS
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GMC Envoy Muffler Part Number: 15847578
Product Specifications
- Other Name: Muffler Assembly-Exhaust (W/Resonator, Exhaust & Tail Pipe; Muffler, Exhaust Tail Pipe; Muffler, Exhaust
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006 GMC Envoy | Denali | 8 Cyl 5.3 L GAS
View related parts
GMC Envoy Muffler W/Tpipe Part Number: 15847577
Product Specifications
- Other Name: Muffler Assembly-Exhaust (W/Resonator, Exhaust & Tail Pipe; Direct-Fit Exhaust; Exhaust System Kit; Exhaust Pipe; Muffler; Muffler, Exhaust Tail Pipe; Muffler, Exhaust
- Replaces: 15064263, 15185659, 15778682
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2002-2006 GMC Envoy | SLE, SLT | 6 Cyl 4.2 L GAS
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GMC Envoy Muffler Part Number: 15847574
Product Specifications
- Other Name: Muffler Assembly-Exhaust (W/Resonator, Exhaust & Tail Pipe; Muffler, Exhaust Tail Pipe; Muffler, Exhaust
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006 GMC Envoy | Denali | 8 Cyl 5.3 L GAS
View related parts
GMC Envoy Muffler W/Tpipe Part Number: 15175774
Product Specifications
- Other Name: Muffler, Exhaust; Direct-Fit Exhaust; Exhaust System Kit; Exhaust Pipe; Muffler
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005 GMC Envoy | Denali | 8 Cyl 5.3 L GAS
View related parts
GMC Envoy Muffler W/Tpipe Part Number: 12479984
Product Specifications
- Other Name: Muffler, Exhaust; Direct-Fit Exhaust; Exhaust System Kit; Exhaust Pipe; Muffler
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2002-2005 GMC Envoy | SLE, SLT | 6 Cyl 4.2 L GAS

GMC Envoy Muffler

Want to cut long-term maintenance and repair costs? Choose OEM Muffler. Those parts deliver top durability you can trust. On our site, you'll find a huge catalog of genuine GMC Envoy parts. Prices are unbeatable, so you can keep more in your pocket. Every OEM GMC Envoy Muffler includes a manufacturer's warranty. You can also get an easy return policy that keeps buying risk free. Fast delivery, get your car on the road quickly. It's simple to search, compare, and order. Stop guessing about quality or fit. Order today and save with parts that last.

GMC Envoy Muffler is one of the vital parts of the exhaust system well known for its quality and durability in most of the GMC Envoy models manufactured from 1998 to 2009. It is well designed to minimize the sound produced by the engine while at the same time stop toxic fumes from entering the cab of the vehicle and thus plays a critical role in increasing productivity as well as safety. Made out of heavy materials such as stainless steel or aluminized steel the GMC Envoy Muffler is available with direct bolt-on applications catering for both the first and second generation GMC Envoy line including the SLT, Envoy XL and the fully adventurous Envoy Denali. It is versatile and may be used for multiple functions making it unique for any GMC fanatic who wants to preserve the integrity of his or her auto. In addition to reducing noise, the Envoy Muffler offers a modification of exhaust flow that, when all is said and done, can enhance power and fuel economy. Also, it follows supreme noise and emission standards, amplifying the importance of safety being served by this invention to the environment. Due to its reliability on daily use as well as the performance aspect, the GMC Envoy Muffler prove to be of high quality and new in the market. Due to the GMC Envoy's effectiveness in noise control and its effect on the engine, it is essential to understand how an acoustic windshield can complement the vehicle's functionality so that drivers can get the optimal of both worlds when it comes to having a comfortable ride and the car's engineering.

GMC Envoy Muffler Parts Questions & Experts Answers

Muffler W/Tpipe
25887916
Q: How to replace the muffler on GMC Envoy?
A:
Proper vehicle elevation through support becomes essential before beginning Muffler replacement. All exhausted system parts requiring replacement must be new because damaged or corroded components are unfit for reuse. Vehicle owners must order both the resonator and tailpipe for vehicles using the ll8 engine system although these components may be clamped together. Start by evaluating exhaust system components for reuse and detach the frame brace. Begin by removing the nuts fixing the Muffler to the catalytic converter pipe then extract the Muffler from the tailpipe assembly at its hanger insulators. Drop the Muffler-tailpipe assembly before cutting through the Exhaust Pipe while supported at the exhaust system. Remove the Muffler from tailpipe following this procedure. During installation position the new Muffler onto the tailpipe pipe and lock it into position by connecting it to the hanger insulators while strictly following the fastener recommendation. Fasten the Muffler to the catalytic converter through nuts that require torque of 45 n.m (33 lb ft). Attach the clamp loosely to secure the Muffler onto the tailpipe followed by tailpipe alignment before tightening clamp nuts to 50 n.m (37 lb ft). The final steps require leak testing of the exhaust system and installing the frame brace and lowering the vehicle back to its original position.