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GMC K1500 Muffler

We have 8 Items In-stock. Select a year to continue.
$73.21 List Price $136.14 Save $62.93 Availability: In Stock
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WALKER SOUNDFX MUFFLER

Walker's SoundFX muffler features a sophisticated pipe routing and tuning technology that provides better flow and favorable OE-style sound. Its all-aluminized construction provides longer service life and quality appearance.

Specifications
  • Aluminized steel muffler material
Features
  • OE-style sound
  • SKU#: WK18824
  • Brand: Walker
  • Fit Note: 117.5 in. Wheelbase, Truck
  • Product Fit: Direct Fit
  • Quantity Sold: Sold Individually
  • Sound Level: Stock
  • Anticipated Ship Out Time: Same day - 1 business day
 
Fits the following GMC K1500 Years:
  • 1996-1999 | 8 Cyl 5.7L | Sierra SL, Sierra SLE, Sierra SLT
  • 1996-1998 | 8 Cyl 5.7L | Sierra Special
$79.95 List Price $103.47 Save $23.52 Availability: In Stock
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FLOWMASTER – SUPER 44 SERIES DELTA FLOW MUFFLERS

Flowmaster’s Super 44 Series Delta Flow mufflers will make you stand out in a crowd (but might not make you a favorite with your neighbors) – surely one of the reasons they’re a top choice for high horsepower performance vehicles. Flowmaster, known as ‘the exhaust technology company,’ is a leading manufacturer of high performance exhaust systems and respected for design, innovation and engineering.

  • Increases torque and horsepower
  • 3-year warranty for aluminized steel, lifetime warranty for stainless steel
  • Fully MIG-welded for maximum strength
  • Come in stainless steel and 16-gauge aluminized steel
  • Distinct, super aggressive tone – the most aggressive of Flowmaster’s line-up
  • Doesn’t have any internal packing that can be blown out
  • Fabricated utilizing patented Delta Flow process and 2-chamber design
  • Quick and easy installation
  • Primarily designed for and used on high horsepower performance vehicles
  • Dyno-tested
  • SKU#: F13943048
  • Brand: Flowmaster
  • Product Fit: Minor Modifications
  • Quantity Sold: Sold Individually
  • Sound Level: Aggressive
  • Recommended Use: Performance
  • Anticipated Ship Out Time: 1-2 Business Days
(see more)
Fits the following GMC K1500 Years:
  • 1994-1999 | 8 Cyl 5.0L | Sierra SL, Sierra SLE, Sierra SLT
  • 1994-1998 | 8 Cyl 5.0L | Sierra Special
(see more)
$94.52 List Price $111.53 Save $17.01 Availability: In Stock
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KOOL VUE HIGH PERFORMANCE MUFFLER, STAINLESS STEEL, POLISHED

Looking for a high performance muffler? KOOL VUE mufflers offer 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 Specifications:
  • Round casing
  • Single center inlet and outlet configuration
  • 2.25 in. inlet diameter; 4 in. outlet diameter
  • 5 in. width x 5 in. height; 20 in. overall length

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
(see more)
Fits the following GMC K1500 Years:
  • 1994-1999 | 8 Cyl 5.7L | Sierra SL, Sierra SLT
  • 1988-1999 | 8 Cyl 5.7L | Sierra SLE
(see more)
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 view all 2 reviews

$39.21 List Price $61.18 Save $21.97 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 K1500 Years:
  • 1994-1999 | 8 Cyl 5.7L | Sierra SL, Sierra SLT
  • 1988-1999 | 8 Cyl 5.7L | Sierra SLE
(see more)
Rating: (see review/s)

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

"The muffler as was purchased cannot be used right away. It needs gasket and other interconnection parts. It may be OK for someone experienced." posted by: Raghu on February 8, 2013 view all 7 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 K1500 Years:
  • 1994-1999 | 8 Cyl 5.7L | Sierra SL, Sierra SLT
  • 1988-1999 | 8 Cyl 5.7L | Sierra SLE
(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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$40.43 List Price $47.71 Save $7.28 Availability: In Stock
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Heartthrob Exhaust Glasspack Muffler features louvered cores and long strand high temperature fiberglass. It has expandable ends and expansion joints that prevents premature core breakage.

Feature(s):

  • Old school powerful sound

Specifications:

  • Round body shape
  • Single center inlet and outlet configuration
  • 2.25 in. inlet diameter
  • 2.25 in. outlet diameter
  • SKU#: HEA3615542
  • Brand: Heartthrob Exhaust
  • Fit Note: 1 Ton, Small Block Engine
  • Product Fit: Direct Fit
  • Quantity Sold: Sold Individually
  • Sound Level: Stock
  • Recommended Use: Performance
  • Anticipated Ship Out Time: 1-2 Business Days
(see more)
Fits the following GMC K1500 Years:
  • 1979-1986 | All Engines | All Submodels
$118.54 List Price $198.00 Save $79.46 Availability: In Stock
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GIBSON – SUPERFLOW MUFFLERS

Gibson’s Superflow mufflers are dyno-proven to dramatically increase the performance of your low to mid-range RPMs due to their Convergent Flow technology and straight design that makes exhaust flow more efficiently. Gibson is known as the leading manufacturer of street-legal, high performance exhaust systems for trucks, SUVs, diesels, off-road vehicles and RVs.

  • Most reliable, trouble-free and affordable muffler available - period
  • Deep, rich big block sound outside and relatively quiet interior
  • Convergent Flow Technology means dramatically more efficient exhaust flow
  • Baffled and chambered design means optimal volumetric efficiency
  • Features straight design which improves exhaust flow to increase torque and horsepower
  • Dyno-tested
  • Direct fit by vehicle year, make and model
  • Made in America
  • Makes significant improvements in low to mid-range
  • Comes in universal oval, round or in a race muffler style
  • SKU#: G2755131S
  • Brand: Gibson
  • Product Fit: Universal
  • Quantity Sold: Sold Individually
  • Sound Level: Aggressive
  • Recommended Use: Performance
  • Anticipated Ship Out Time: 3-4 business days
(see more)
Fits the following GMC K1500 Years:
  • 1979-1980 | All Engines | All Submodels
$80.56 List Price $95.06 Save $14.50 Availability: In Stock
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Flowtech Afterburner Mufflers are your very best bet for optimum performance and awesome sound. They are made with an aluminized case for miles and miles of rust and corrosion protection. Their fully-welded construction offers stronger seams to prevent blow out under extreme conditions. Huge flow tubes provides blistering horsepower, while the sound tuned chambers provides unbelievable sound and minimize annoying resonance. And, Afterburner mufflers are fully reversible, designed for maximum flow in either direction.

Feature(s):

  • Awesome powerful sound with minimal resonance
  • Reversible

Specifications:

  • 13 in. L x 10 in. W x 4 in. H, 18 in. overall length
  • Aggressive sound level
  • Oval body shape
  • Single center inlet and dual offset outlet configuration
  • 3 in. inlet diameter
  • 2.5 in. outlet diameter
  • SKU#: F3150370
  • Brand: Flowtech
  • Product Fit: Direct Fit
  • Quantity Sold: Sold Individually
  • Sound Level: Aggressive
  • Recommended Use: Performance
  • Anticipated Ship Out Time: Same day - 1 business day
(see more)
Fits the following GMC K1500 Years:
  • 1995 | 8 Cyl 5.7L | Sierra SLS
  • 1994-1995 | 8 Cyl 5.7L | Sierra SL, Sierra SLT, Sierra Special
(see more)
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