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GMC Sierra 2500 Muffler

We have 6 Items In-stock. Select a year to continue.
$95.92 List Price $210.52 Save $114.60 Availability: In Stock
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WALKER QUIET-FLOW 3 MUFFLER

Walker's Quiet-flow3 muffler features a sophisticated internal routing and tuning technologies for superior flow and premium OE-style sound. Its internal partition baffles and spun-locked heads help improve structural support.

Specifications
  • Aluminized steel muffler material
Features
  • OE-style sound
  • SKU#: WK21533
  • Brand: Walker
  • Fit Note: 153.0 in. Wheelbase, Truck, Except Heavy Duty, Except LEV Spec, Federal Emission System
  • Product Fit: Direct Fit
  • Quantity Sold: Sold Individually
  • Sound Level: Stock
  • Anticipated Ship Out Time: Same day - 1 business day
 
Fits the following GMC Sierra 2500 Years:
  • 2003-2004 | 8 Cyl 6.0L | Base, SLE, SLT, WT
$182.99 List Price $236.81 Save $53.82 Availability: In Stock
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FLOWMASTER – 50 SERIES BIG BLOCK MUFFLERS

Flowmaster’s Big Block mufflers turn your big rig – truck, SUV or motorhome – into something a little more pleasant to drive, giving it a nice, quiet tone and significant boost in horsepower, torque and fuel economy. Flowmaster, known as ‘the exhaust technology company,’ is a leading manufacturer of high performance exhaust systems and respected for design, innovation and engineering.

  • Increases gas mileage, torque and horsepower
  • Backed by a lifetime warranty
  • Fully MIG-welded for maximum strength
  • Comes in stainless steel
  • Quick and easy installation
  • For large SUVs, big trucks, tow vehicles and motorhomes
  • Super quiet inside the cabin
  • Minimizes heat from the engine and vehicle wear-and-tear overall
  • Big resonance chamber keeps interior noise to a minimum
  • Dyno-tested
  • SKU#: F13530513
  • Brand: Flowmaster
  • Product Fit: Minor Modifications
  • Quantity Sold: Sold Individually
  • Sound Level: Mild
  • Recommended Use: Performance
  • Anticipated Ship Out Time: 1-2 Business Days
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Fits the following GMC Sierra 2500 Years:
  • 2003-2004 | 8 Cyl 6.0L | WT
  • 2002-2004 | 8 Cyl 6.0L | Base
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Rating: (see review/s)

"This was easy to install with a lift and welder. Great V8 sound without the vibrating or rattling, like other mufflers. Loud enough to let everybody know without waking the neighbors. Would recommend adding a coat of high temp paint to help with the rust." posted by: on April 7, 2011

"I use flowmaster products on all my vehicles simply because they are the best in my book. I like the sound and performance of the product." posted by: on December 3, 2008

$98.18 List Price $115.85 Save $17.67 Availability: In Stock
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KOOL VUE HIGH PERFORMANCE MUFFLER

Looking for a high performance muffler? KOOL VUE muffler offers a selection that improves your vehicle's performance and at the same time dramatically decreases its noise. It also produces an aggressive but cool tone from the inside %X96 something to be proud of when you are in the streets.

Features and Benefits:

  • Improves vehicle's performance
  • Dramatically decreases the noise
  • Stainless steel material for extended durability and longer life
  • SKU#: KV150110
  • Brand: Kool Vue
  • Quantity Sold: Sold Individually
  • Sound Level: Mild
  • Recommended Use: Performance
  • Anticipated Ship Out Time: 1-2 Business Days
  • Attachment Style: Clamp-On
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Fits the following GMC Sierra 2500 Years:
  • 2003-2004 | 8 Cyl 6.0L | WT
  • 2002-2004 | 8 Cyl 6.0L | Base
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Rating: (see review/s)

"Very high quality muffler,all stainless steel construction,one third the price that other companies charge for the same product.This was a very easy installation to do.The best part was it is a muffler and tail pipe in one." posted by: jp morgan on September 19, 2011

"VERY GOOD PRODUCT, FOR THE MONEY... WILL DEFINELY RECOMMEND TO A FRIEND... THE ONLY THING IS THE SCREWS THAT HOLD THE SILENCES ARE NOT STRONG ENOUGH" posted by: WILLNY on June 24, 2009

$29.10 List Price $61.18 Save $32.08 Availability: In Stock
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THRUSH – TURBO MUFFLERS

Thrush makes a wide selection of mufflers with a choice of sizes and inlet/outlet positions to make sure you get the right fitting muffler for your ride. Thrush Turbo Mufflers have the classic Thrush sound and have a tested reverse flow design. Thrush Mufflers was founded almost 50 years ago during a time when hot rods and muscle cars ruled the streets of America. Fast forward to today and Thrush Mufflers are still the preferred muffler of muscle car and hot rod owners across the land. Be assured that when installing a Thrush Muffler you will get an aggressive and powerful sounding exhaust tone, hence Thrush’s motto; “Vintage Sound…Today’s Power.”

  • Available in 2.25 inch, 2.5 inch and 3 inch inlets and outlets
  • Available muffler shell sizes from 11 inches to 20 inches
  • Made of 100 % aluminized steel
  • Completely reversible for Flexibility during installation
  • Classic Thrush sound
  • Does not void your vehicle’s factory warranty
  • Reverse flow design
  • SKU#: D2217715
  • Brand: Thrush
  • Product Fit: Universal
  • Quantity Sold: Sold Individually
  • Sound Level: Moderate
  • Recommended Use: Performance
  • Anticipated Ship Out Time: 1-2 Business Days
(see more)
Fits the following GMC Sierra 2500 Years:
  • 2003-2004 | 8 Cyl 6.0L | WT
  • 2002-2004 | 8 Cyl 6.0L | Base
(see more)
Rating: (see review/s)

"Good buy, would be better with adapters for ends to match car." posted by: on September 26, 2014

"PRODUCT WAS JUST AS ORDERED. WAS INSTALLED WITH EASE." posted by: G LAB on March 21, 2013 view all 8 reviews

$28.96 List Price $61.18 Save $32.22 Availability: In Stock
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DYNOMAX – THRUSH TURBO MUFFLERS

Dynomax offers a selection of mufflers with a choice of sizes and inlet/outlet positions to make sure you get the right fitting muffler for your ride. Dynomax Thrush Turbo Mufflers have the classic Thrush sound and have a tested reverse flow design. Dynomax is a world leader in the performance exhaust space, manufacturing products held to the highest engineering standards and backed by extensive research and development.

  • Available in various inlet and outlet sizes and muffler shell lengths
  • Made of 100 % aluminized steel
  • Completely reversible for flexibility during installation
  • Classic Thrush sound
  • Does not void your vehicle’s factory warranty
  • Reverse flow design
  • SKU#: D2217702
  • Brand: Dynomax
  • Product Fit: Universal
  • Quantity Sold: Sold Individually
  • Sound Level: Moderate
  • Recommended Use: Performance
  • Anticipated Ship Out Time: 1-2 Business Days
(see more)
Fits the following GMC Sierra 2500 Years:
  • 2003-2004 | 8 Cyl 6.0L | WT
  • 2002-2004 | 8 Cyl 6.0L | Base
(see more)
Rating: (see review/s)

"Everything as described, shipped timely, recieved in good condition, works as expected." posted by: endoftheriver on July 30, 2009

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$298.51 List Price $352.24 Save $53.73 Availability: In Stock
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BANKS MONSTER MUFFLER

Banks Monster muffler features exclusive expansion chamber design that dissipates annoying mid-range drone. Flows up to 201 percent better than stock and it delivers an authoritative but never overpowering exhaust sound.

Specifications:

  • Single center inlet and outlet configuration
  • 4 in. inlet diameter
  • 4 in. outlet diameter
  • Moderate sound level
  • Round body shape
  • SKU#: B7653800
  • Brand: Banks
  • Fit Note: Truck
  • Product Fit: Direct Fit
  • Quantity Sold: Sold Individually
  • Sound Level: Moderate
  • Recommended Use: Performance
  • Anticipated Ship Out Time: 1-2 Business Days
(see more)
Fits the following GMC Sierra 2500 Years:
  • 2001-2004 | All Engines | All Submodels
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