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Muffler for 1998 GMC K1500

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Walker SoundFX Muffler

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

Features:
  • OE-style sound
  • Aluminized steel muffler material
Walker Muffler, Walker SoundFX, Aluminized Steel, Natural
$73.21 List Price $136.14 Save $62.93 Availability: In Stock
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  • SKU#: WK18824
  • Product Fit: Direct fit
  • Quantity Sold: Sold Individually
  • Sound Level: Stock
  • Anticipated Ship Out Time: Same day - 1 business day
Fits the following 1998 GMC K1500 submodels:
  • 8 Cyl 5.7L | Sierra Special, Sierra SL, Sierra SLE, Sierra SLT
Walker Muffler, Walker SoundFX, Aluminized Steel, Natural
$54.00 List Price $63.72 Save $9.72 Availability: In Stock
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  • SKU#: WK18216
  • Product Fit: Direct fit
  • Quantity Sold: Sold Individually
  • Sound Level: Stock
  • Anticipated Ship Out Time: Same day - 1 business day
Fits the following 1998 GMC K1500 submodels:
  • 6 Cyl 4.3L | Sierra SL, Sierra SLE, Sierra SLT, Sierra Special
  • 8 Cyl 5.0L | Sierra Special, Sierra SL, Sierra SLE, Sierra SLT
Rating: (see review/s)

"Happy with my purchase, no problems at all. Very good prices and super fast delivery!!" posted by: Dave on April 9, 2008

Walker Tru Fit Muffler

Walker's Tru-Fit 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
Walker Muffler, Walker Tru Fit, Aluminized Steel, Natural
$42.13 List Price $49.71 Save $7.58 Availability: In Stock
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  • SKU#: WK18138
  • Product Fit: Direct fit
  • Quantity Sold: Sold Individually
  • Sound Level: Stock
  • Recommended Use: OE Replacement
  • Anticipated Ship Out Time: Same day - 1 business day
  • Attachment Style: Weld-on
  • Body Length: 24 in.
  • Case Shape: Oval
  • Height: 7 in.
  • Inlet Location: Offset
  • Inlet Quantity: Single
  • Inlet Size: 2.75 in.
  • Internal Construction: Perforated
  • Outlet Location: Offset
  • Outlet Quantity: Single
  • Outlet Size: 2.75 in.
  • Overall Length: 29 in.
  • Warranty: 90-day Walker limited warranty
  • Width: 9 in.
see more Fits the following 1998 GMC K1500 submodels:
  • 6 Cyl 4.3L | Sierra SL, Sierra SLE, Sierra SLT, Sierra Special
  • 8 Cyl 5.0L | Sierra Special, Sierra SL, Sierra SLE, Sierra SLT

Walker Quiet-Flow3 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.

Features
  • OE-style sound
  • Aluminized steel muffler material
Walker Muffler, Aluminized Steel, Natural, Direct Fit
$101.53 List Price $119.81 Save $18.28 Availability: In Stock
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  • SKU#: WK21282
  • Quantity Sold: Sold Individually
  • Sound Level: Stock
  • Anticipated Ship Out Time: Same day - 1 business day
Fits the following 1998 GMC K1500 submodels:
  • 8 Cyl 5.7L | Sierra Special, Sierra SL, Sierra SLE, Sierra SLT
Walker Muffler, Aluminized Steel, Natural, Direct Fit
$88.96 List Price $104.97 Save $16.01 Availability: In Stock
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  • SKU#: WK21046
  • Quantity Sold: Sold Individually
  • Sound Level: Stock
  • Anticipated Ship Out Time: Same day - 1 business day
Fits the following 1998 GMC K1500 submodels:
  • 6 Cyl 4.3L | Sierra SL, Sierra SLE, Sierra SLT, Sierra Special
  • 8 Cyl 5.0L | Sierra Special, Sierra SL, Sierra SLE, Sierra SLT

Flowmaster - Super 44 Series Delta Flow Mufflers

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
Flowmaster Muffler, Flowmaster Super 44 Series, Aluminized Steel, Black
$79.95 List Price $103.47 Save $23.52 Availability: In Stock
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  • SKU#: F13943048
  • Product Fit: Minor Modifications
  • Quantity Sold: Sold Individually
  • Sound Level: Aggressive
  • Recommended Use: Performance
  • Anticipated Ship Out Time: 2-3 business days
  • Attachment Style: Clamp-On or Weld-On (Recommended)
  • Body Length: 13 in.
  • Case Shape: Oval
  • Height: 4 in.
  • Inlet Location: Offset
  • Inlet Quantity: Single
  • Inlet Size: 3 in.
  • Internal Construction: Chambered
  • Outlet Location: Offset
  • Outlet Quantity: Single
  • Outlet Size: 3 in.
  • Overall Length: 19 in.
  • Warranty: 3-year Flowmaster limited warranty
  • Width: 9.75 in.
see more Fits the following 1998 GMC K1500 submodels:
  • 8 Cyl 5.0L | Sierra Special, Sierra SL, Sierra SLE, Sierra SLT
Flowmaster Muffler, Flowmaster Super 44 Series, Stainless Steel, Black
$89.99 List Price $116.46 Save $26.47 Availability: In Stock
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  • SKU#: F13843048
  • Product Fit: Minor Modifications
  • Quantity Sold: Sold Individually
  • Sound Level: Aggressive
  • Recommended Use: Performance
  • Anticipated Ship Out Time: 2-3 business days
  • Attachment Style: Clamp-On or Weld-On (Recommended)
  • Body Length: 13 in.
  • Case Shape: Oval
  • Height: 4 in.
  • Inlet Location: Offset
  • Inlet Quantity: Single
  • Inlet Size: 3 in.
  • Internal Construction: Chambered
  • Outlet Location: Offset
  • Outlet Quantity: Single
  • Outlet Size: 3 in.
  • Overall Length: 19 in.
  • Warranty: Lifetime Flowmaster limited warranty
  • Width: 9.75 in.
see more Fits the following 1998 GMC K1500 submodels:
  • 8 Cyl 5.0L | Sierra Special, Sierra SL, Sierra SLE, Sierra SLT

Flowmaster - Super 50 Series Delta Flow Mufflers

FLOWMASTER – SUPER 50 SERIES DELTA FLOW MUFFLERS

Flowmaster’s Super 50 Series Delta Flow mufflers give your vehicle little grunt with their moderate to mild tone (depending on how you tune it) – surely one of the reasons they’re a top choice among performance enthusiasts and muscle car aficionados. 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, horsepower and possibly mileage
  • 3-year warranty for aluminized steel, lifetime warranty for stainless steel
  • Fully MIG-welded for maximum strength
  • A bigger alternative to the original Flowmaster 50 Series
  • Come in stainless steel and 16-gauge aluminized steel
  • Distinct moderate to mild tone with slight interior sound
  • Fabricated utilizing patented Delta Flow process
  • Quick and easy installation
  • Primarily designed for and used on performance vehicles and muscle cars
  • Dyno-tested
Flowmaster Muffler, Flowmaster Super 50 Series, Aluminized Steel, Gray
$129.99 List Price $168.22 Save $38.23 Availability: In Stock
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  • SKU#: F13524553
  • Product Fit: Minor Modifications
  • Quantity Sold: Sold Individually
  • Sound Level: Moderate
  • Recommended Use: Performance
  • Anticipated Ship Out Time: 2-3 business days
  • Attachment Style: Clamp-On or Weld-On (Recommended)
  • Body Length: 17 in.
  • Case Shape: Oval
  • Height: 5 in.
  • Inlet Location: Center (Dual)
  • Inlet Quantity: Dual
  • Inlet Size: 2.25 in.
  • Internal Construction: Chambered
  • Outlet Location: Center
  • Outlet Quantity: Single
  • Outlet Size: 3 in.
  • Overall Length: 23 in.
  • Warranty: 3-year Flowmaster limited warranty
  • Width: 10 in.
see more Fits the following 1998 GMC K1500 submodels:
  • 8 Cyl 5.7L | Sierra Special, Sierra SL, Sierra SLE, Sierra SLT
Flowmaster Muffler, Flowmaster Super 50 Series, Aluminized Steel, Gray
$129.99 List Price $168.22 Save $38.23 Availability: In Stock
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  • SKU#: F1353058
  • Product Fit: Minor Modifications
  • Quantity Sold: Sold Individually
  • Sound Level: Moderate
  • Recommended Use: Performance
  • Anticipated Ship Out Time: 2-3 business days
  • Attachment Style: Clamp-On or Weld-On (Recommended)
  • Body Length: 17 in.
  • Case Shape: Oval
  • Height: 5 in.
  • Inlet Location: Offset
  • Inlet Quantity: Single
  • Inlet Size: 3 in.
  • Internal Construction: Perforated
  • Notes: Minor Modifications
  • Outlet Location: Offset
  • Outlet Quantity: Single
  • Outlet Size: 3 in.
  • Overall Length: 23 in.
  • Warranty: 3-year Flowmaster limited warranty
  • Width: 10 in.
see more Fits the following 1998 GMC K1500 submodels:
  • 8 Cyl 5.0L | Sierra Special, Sierra SL, Sierra SLE, Sierra SLT
Flowmaster Muffler, Flowmaster Super 50 Series, Stainless Steel, Gray
$131.31 List Price $169.93 Save $38.62 Availability: In Stock
  • APW Bestseller
  • Free Ground Shipping
  • Low Price Guarantee
(

more

)
  • SKU#: F138524553
  • Product Fit: Minor Modifications
  • Quantity Sold: Sold Individually
  • Sound Level: Moderate
  • Recommended Use: Performance
  • Anticipated Ship Out Time: 2-3 business days
  • Attachment Style: Clamp-On or Weld-On (Recommended)
  • Body Length: 17 in.
  • Case Shape: Oval
  • Height: 5 in.
  • Inlet Location: Center (Dual)
  • Inlet Quantity: Dual
  • Inlet Size: 2.25 in.
  • Internal Construction: Chambered
  • Outlet Location: Center
  • Outlet Quantity: Single
  • Outlet Size: 3 in.
  • Overall Length: 23 in.
  • Warranty: Lifetime Flowmaster limited warranty
  • Width: 10 in.
see more Fits the following 1998 GMC K1500 submodels:
  • 8 Cyl 5.7L | Sierra Special, Sierra SL, Sierra SLE, Sierra SLT

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FLOWMASTER - 40 SERIES ORIGINAL MUFFLERS
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FLOWMASTER - SUPER 40 SERIES DELTA FLOW MUFFLERS
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FLOWMASTER - 40 SERIES DELTA FLOW MUFFLERS
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KOOL VUE STAINLESS STEEL MUFFLER

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DYNOMAX MUFFLER

Dynomax Muffler

The Dynomax Muffler is made out of high grade materials to ensure your product to have long service life. What's more, this remarkable part ensures to provide the best exhaust flow... (see more)

BOLTON PREMIERE PERFORMANCE MUFFLER (MINOR MODIFICATIONS REQUIRED)
BOLTON PREMIERE PERFORMANCE MUFFLER

Enhance your vehicle's performance by modifying your muffler and replacing it with one from Bolton Premiere. Each muffler is made from 16-gauge aluminized steel to... (see more)