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Exhaust System for 2003 GMC Sierra 1500 HD

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Gibson - Dual Sport Cat-Back Exhaust Systems

GIBSON – DUAL SPORT CAT-BACK EXHAUST SYSTEMS

Gibson’s Dual Sport cat-back exhaust system is dyno-proven to dramatically increase the power band in the 2000-4000 RPM range, giving you more horsepower and torque right where you need it – and of course also gives you that great street truck look and sound. Gibson is known as the leading manufacturer of street-legal, high performance exhaust systems for trucks, SUVs, diesels, off-road vehicles and RVs.

  • Gives you that street truck style with an aggressive tone
  • Stainless exhausts backed by a lifetime warranty
  • Deep, aggressive sound
  • Patented Superflow technology means dramatically more efficient exhaust flow
  • Comes in aluminized or stainless steel
  • Baffled and chambered design means optimal volumetric efficiency
  • Proven to improve torque and horsepower by as much as 15 hp
  • Mandrel-bent tubing allows for continuous airflow
  • Polished slash style stainless tips feature sleek clampless connection
  • Dyno-tested
  • Direct fit by vehicle year, make and model
  • Made in America
  • Legal in all 50 states
Gibson Exhaust System, Gibson Dual Sport, Aluminized Steel, Natural
$480.20 List Price $853.35 Save $373.15 Availability: In Stock
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  • SKU#: G275207
  • Quantity Sold: Assembly
  • Muffler Sound Level: Moderate to Aggressive
  • Recommended Use: Performance
  • Advertised Power Gains: 15-20 h.p.
  • Anticipated Ship Out Time: 2-3 business days
  • Attachment Style: Bolt-on
  • Exit Location: Behind Rear Tire
  • Exit Quantity: Dual
  • Includes: Pipes, zinc-plated factory style hangers, heavy-duty clamps, bolt kits
  • Main Piping Diameter: 2.5 in.
  • Muffler Configuration: Dual inlet and outlet
  • Muffler Finish: Natural
  • Muffler Material: Aluminized steel
  • Muffler Quantity: One
  • Muffler Type: Baffled and Chambered
  • System Type: Cat-back
  • Tip Cut: Angle
  • Tip Diameter: 3.5 in.
  • Tip Edge Style: Non-Rolled
  • Tip Finish: Polished
  • Tip Length: 3.5 in.
  • Tip Material: Stainless Steel
  • Tip Quantity: Two
  • Tip Shape: Round
  • Warranty: Lifetime Gibson limited warranty
see more Fits the following 2003 GMC Sierra 1500 HD submodels:
  • 8 Cyl 6.0L | SLE, SLT
Gibson Exhaust System, Gibson Dual Sport, Stainless Steel, Natural
$600.10 List Price $1,077.16 Save $477.06 Availability: In Stock
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  • SKU#: G2765207
  • Quantity Sold: Assembly
  • Muffler Sound Level: Moderate to Aggressive
  • Recommended Use: Performance
  • Advertised Power Gains: 15-20 h.p.
  • Anticipated Ship Out Time: 2-3 business days
  • Attachment Style: Bolt-on
  • Exit Location: In Front of Rear Tire
  • Exit Quantity: Dual
  • Includes: Pipes, zinc-plated factory style hangers, heavy-duty clamps, bolt kit
  • Main Piping Diameter: 2.5 in.
  • Muffler Configuration: Dual inlet and outlet
  • Muffler Finish: Natural
  • Muffler Material: Stainless Steel
  • Muffler Quantity: One
  • Muffler Type: Baffled and Chambered
  • System Type: Cat-back
  • Tip Cut: Angle
  • Tip Diameter: 3.5 in.
  • Tip Edge Style: Non-Rolled
  • Tip Finish: Polished
  • Tip Length: 3.5 in.
  • Tip Material: Stainless Steel
  • Tip Quantity: Two
  • Tip Shape: Round
  • Warranty: Lifetime Gibson limited warranty
see more Fits the following 2003 GMC Sierra 1500 HD submodels:
  • 8 Cyl 6.0L | SLE, SLT

Gibson - Dual Extreme Cat-Back Exhaust Systems

GIBSON – DUAL EXTREME CAT-BACK EXHAUST SYSTEMS

Gibson’s Dual Extreme cat-back exhaust system will not only boost your extremist image, but is dyno-proven to dramatically increase your truck’s power with its aggressive style and sound – the most extreme in Gibson’s exhaust line-up. Gibson is known as the leading manufacturer of street-legal, high performance exhaust systems for trucks, SUVs, diesels, off-road vehicles and RVs.

  • Gibson’s most aggressively styled exhaust with the most aggressive sound
  • Stainless steel exhausts backed by a lifetime warranty
  • Dual exit style is aggressively angled at the rear wheels for optimal performance and sound
  • Patented Superflow technology means dramatically more efficient exhaust flow
  • Comes in aluminized or stainless steel
  • Proven to improve torque and horsepower (up to 20 hp) as well as mileage
  • Mandrel-bent tubing allows for continuous airflow
  • Polished stainless tips feature sleek clampless connection
  • Dyno-tested
  • Direct fit by vehicle year, make and model
  • Made in America
  • Legal in all 50 states
Gibson Exhaust System, Gibson Dual Extreme, Aluminized Steel, Natural
$392.69 List Price $696.69 Save $304.00 Availability: In Stock
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  • SKU#: G275571
  • Quantity Sold: Assembly
  • Muffler Sound Level: Aggressive
  • Recommended Use: Performance
  • Advertised Power Gains: 15-20 h.p.
  • Anticipated Ship Out Time: 2-3 business days
  • Attachment Style: Bolt-on
  • Exit Location: Behind Each Rear Tire
  • Exit Quantity: Dual
  • Includes: Pipes, zinc-plated factory style hangers, heavy-duty clamps
  • Main Piping Diameter: 2.5 in.
  • Muffler Configuration: Dual inlet and outlet
  • Muffler Finish: Natural
  • Muffler Material: Aluminized steel
  • Muffler Quantity: One
  • Muffler Type: Baffled and Chambered
  • System Type: Cat-back
  • Tip Cut: Angle
  • Tip Diameter: 3.5 in.
  • Tip Edge Style: Non-Rolled
  • Tip Finish: Polished
  • Tip Length: 3.5 in.
  • Tip Material: Stainless Steel
  • Tip Quantity: Two
  • Tip Shape: Round
  • Warranty: Lifetime Gibson limited warranty
see more Fits the following 2003 GMC Sierra 1500 HD submodels:
  • 8 Cyl 6.0L | SLE, SLT
Gibson Exhaust System, Gibson Dual Extreme, Stainless Steel, Natural
$509.77 List Price $908.56 Save $398.79 Availability: In Stock
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  • SKU#: G2765571
  • Quantity Sold: Assembly
  • Muffler Sound Level: Aggressive
  • Recommended Use: Performance
  • Advertised Power Gains: 15-20 h.p.
  • Anticipated Ship Out Time: 2-3 business days
  • Attachment Style: Bolt-on
  • Exit Location: Behind Each Rear Tire
  • Exit Quantity: Dual
  • Includes: Pipes, zinc-plated factory style hangers, heavy-duty clamps, bolt kit, spare tire bracket
  • Main Piping Diameter: 2.5 in.
  • Muffler Configuration: Single inlet and outlet
  • Muffler Finish: Natural
  • Muffler Material: Stainless Steel
  • Muffler Quantity: One
  • Muffler Type: Baffled and Chambered
  • System Type: Cat-back
  • Tip Cut: Angle
  • Tip Diameter: 3.5 in.
  • Tip Edge Style: Non-Rolled
  • Tip Finish: Polished
  • Tip Length: 3.5 in.
  • Tip Material: Stainless Steel
  • Tip Quantity: Two
  • Tip Shape: Round
  • Warranty: Lifetime Gibson limited warranty
see more Fits the following 2003 GMC Sierra 1500 HD submodels:
  • 8 Cyl 6.0L | SLE, SLT

Gibson - Split Rear Cat-Back Exhaust Systems

GIBSON – SPLIT REAR CAT-BACK EXHAUST SYSTEMS

Gibson’s Split Rear cat-back exhaust system is dyno-proven to dramatically increase the power band in the low to mid range, giving you more horsepower, torque and fuel economy and a design that leaves you room for a hitch, spare or roll pan. Gibson is known as the leading manufacturer of street-legal, high performance exhaust systems for trucks, SUVs, diesels, off-road vehicles and RVs.

  • Stainless exhausts backed by a lifetime warranty
  • Deep, rich sound (a bit louder when towing)
  • Patented Superflow technology means dramatically more efficient exhaust flow
  • Designed to work with most bumpers without interfering with a hitch, roll pan or spare tire
  • Comes in aluminized or stainless steel
  • Baffled and chambered design means optimal volumetric efficiency
  • Proven to improve torque, horsepower and gas mileage
  • Mandrel-bent tubing allows for continuous airflow
  • Polished stainless tips feature sleek clampless connection
  • Dyno-tested
  • Direct fit by vehicle year, make and model
  • Made in America
  • Legal in all 50 states
Gibson Exhaust System, Gibson Split Rear, Aluminized Steel, Natural
$480.20 List Price $853.35 Save $373.15 Availability: In Stock
  • Free Ground Shipping
  • Low Price Guarantee
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  • SKU#: G275555
  • Quantity Sold: Assembly
  • Muffler Sound Level: Aggressive
  • Recommended Use: Performance
  • Advertised Power Gains: 15-20 h.p.
  • Anticipated Ship Out Time: 2-3 business days
  • Attachment Style: Bolt-on
  • Exit Location: Straight out the back
  • Exit Quantity: Dual
  • Includes: Pipes, zinc-plated factory style hangers, heavy-duty clamps, bolt kit, spare tire bracket
  • Main Piping Diameter: 2.5 in.
  • Muffler Configuration: Dual inlet and outlet
  • Muffler Finish: Natural
  • Muffler Material: Aluminized steel
  • Muffler Quantity: One
  • Muffler Type: Baffled and Chambered
  • System Type: Cat-back
  • Tip Cut: Angle
  • Tip Diameter: 3.5 in.
  • Tip Edge Style: Non-Rolled
  • Tip Finish: Polished
  • Tip Length: 3.5 in.
  • Tip Material: Stainless Steel
  • Tip Quantity: Two
  • Tip Shape: Round
  • Warranty: Lifetime Gibson limited warranty
see more Fits the following 2003 GMC Sierra 1500 HD submodels:
  • 8 Cyl 6.0L | SLE, SLT
Gibson Exhaust System, Gibson Split Rear, Stainless Steel, Natural
$597.32 List Price $1,077.16 Save $479.84 Availability: In Stock
  • Free Ground Shipping
  • Low Price Guarantee
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  • SKU#: G2765555
  • Quantity Sold: Assembly
  • Muffler Sound Level: Aggressive
  • Recommended Use: Performance
  • Advertised Power Gains: 15-20 h.p.
  • Anticipated Ship Out Time: 2-3 business days
  • Attachment Style: Bolt-on
  • Exit Location: Straight out the back
  • Exit Quantity: Dual
  • Includes: Pipes, zinc-plated factory style hangers, heavy-duty clamps, bolt kit, spare tire bracket
  • Main Piping Diameter: 2.5 in.
  • Muffler Configuration: Dual inlet and outlet
  • Muffler Finish: Natural
  • Muffler Material: Stainless Steel
  • Muffler Quantity: One
  • Muffler Type: Baffled and Chambered
  • System Type: Cat-back
  • Tip Cut: Angle
  • Tip Diameter: 3.5 in.
  • Tip Edge Style: Non-Rolled
  • Tip Finish: Polished
  • Tip Length: 3.5 in.
  • Tip Material: Stainless Steel
  • Tip Quantity: Two
  • Tip Shape: Round
  • Warranty: Lifetime Gibson limited warranty
see more Fits the following 2003 GMC Sierra 1500 HD submodels:
  • 8 Cyl 6.0L | SLE, SLT

Gibson - Swept Side Cat-Back Exhaust Systems

GIBSON – SWEPT SIDE CAT-BACK EXHAUST SYSTEMS

Gibson’s Swept Side cat-back exhaust system is dyno-proven to dramatically increase the power band in the 1800-3000 RPM range, giving you more horsepower, torque, fuel economy and towability with a rich, deep exhaust tone. Gibson is known as the leading manufacturer of street-legal, high performance exhaust systems for trucks, SUVs, diesels, off-road vehicles and RVs.

  • Gibson’s most popular, affordable and leading performance exhaust system
  • Stainless steel exhausts backed by a lifetime warranty
  • Patented Superflow technology means dramatically more efficient exhaust flow
  • Optimizes towing power, hill climbing and passability
  • Comes in aluminized or stainless steel
  • Proven to improve torque, horsepower (up to 20 hp) and gas mileage
  • Mandrel-bent tubing allows for continuous airflow
  • Polished stainless tips feature sleek clampless connection
  • Dyno-tested
  • Direct fit by vehicle year, make and model
  • Made in America
  • Legal in all 50 states
Gibson Exhaust System, Gibson Swept Side, Stainless Steel, Natural
$723.83 List Price $1,002.21 Save $278.38 Availability: In Stock
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  • SKU#: G27615533
  • Quantity Sold: Assembly
  • Muffler Sound Level: Moderate to Aggressive
  • Recommended Use: Performance
  • Advertised Power Gains: 8-10 h.p.
  • Anticipated Ship Out Time: 2-3 business days
  • Attachment Style: Bolt-on
  • Exit Location: Behind Rear Tire
  • Exit Quantity: Single
  • Includes: Pipes, installation hardware, gaskets
  • Main Piping Diameter: 3 in.
  • Muffler Configuration: Dual inlet and single outlet
  • Muffler Finish: Natural
  • Muffler Material: Stainless Steel
  • Muffler Quantity: One
  • Muffler Type: Baffled and Chambered
  • System Type: Cat-back
  • Tip Cut: Angle
  • Tip Diameter: 3.5 in.
  • Tip Edge Style: Non-Rolled
  • Tip Finish: Polished
  • Tip Length: 3.5 in.
  • Tip Material: Stainless Steel
  • Tip Quantity: One
  • Tip Shape: Round
  • Warranty: Lifetime Gibson limited warranty
see more Fits the following 2003 GMC Sierra 1500 HD submodels:
  • 8 Cyl 6.0L | SLE, SLT
Gibson Exhaust System, Gibson Swept Side, Aluminized Steel, Natural
$413.72 List Price $735.95 Save $322.23 Availability: In Stock
  • Free Ground Shipping
  • Low Price Guarantee
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  • SKU#: G27315533
  • Quantity Sold: Assembly
  • Muffler Sound Level: Moderate to Aggressive
  • Recommended Use: Performance
  • Advertised Power Gains: 15-20 h.p.
  • Anticipated Ship Out Time: 2-3 business days
  • Attachment Style: Bolt-on
  • Exit Location: Behind Rear Tire
  • Exit Quantity: Single
  • Includes: Pipes, installation hardware, gaskets
  • Main Piping Diameter: 3.0 in.
  • Muffler Configuration: Dual inlet and single outlet
  • Muffler Finish: Natural
  • Muffler Material: Aluminized steel
  • Muffler Quantity: One
  • Muffler Type: Baffled and Chambered
  • System Type: Cat-back
  • Tip Cut: Angle
  • Tip Diameter: 3.5 in.
  • Tip Edge Style: Non-Rolled
  • Tip Finish: Polished
  • Tip Length: 3.5 in.
  • Tip Material: Stainless Steel
  • Tip Quantity: One
  • Tip Shape: Round
  • Warranty: Lifetime Gibson limited warranty
see more Fits the following 2003 GMC Sierra 1500 HD submodels:
  • 8 Cyl 6.0L | SLE, SLT

Magnaflow Performance Exhaust Systems

MAGNAFLOW PERFORMANCE EXHAUST SYSTEMS

Over the past 30 years, Magnaflow has grown as a market leader of exhaust systems, focusing on three key elements with each product they produce—quality, power and sound. Magnaflow’s Performance exhaust systems feature stainless steel construction and mandrel bent pipes, allowing for greater fuel economy and improved performance. A full-bodied exhaust note, emblematic of the brand, is achieved through the smooth, lap-joint welded body, tightly packed with acoustical fibers designed to dampen irritating pitch tones.

Magnaflow Exhaust System, Magnaflow Performance, Stainless Steel, Natural
$642.41 List Price $831.36 Save $188.95 Availability: In Stock
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  • SKU#: M6615782
  • Quantity Sold: Assembly
  • Muffler Sound Level: Moderate
  • Recommended Use: Performance
  • Anticipated Ship Out Time: 1-2 Business Days
  • Attachment Style: Bolt/Clamp On
  • Exit Location: Rear (Passenger's Side)
  • Exit Quantity: Single
  • Main Piping Diameter: 3 in.
  • Muffler Configuration: Dual inlet and single outlet
  • Muffler Finish: Polished
  • Muffler Material: Stainless Steel
  • Muffler Quantity: One
  • Muffler Type: Straight Thru
  • Notes: Includes: Mounting hardware, 5 x 11 x 22 in. muffler
  • System Type: Cat-back
  • Tip Cut: Straight
  • Tip Diameter: 4 in.
  • Tip Edge Style: Rolled
  • Tip Finish: Polished
  • Tip Length: 12 in.
  • Tip Material: Stainless Steel
  • Tip Quantity: 1
  • Tip Shape: Round
  • Warranty: Lifetime Magnaflow limited warranty
see more Fits the following 2003 GMC Sierra 1500 HD submodels:
  • 8 Cyl 6.0L | SLE, SLT
Magnaflow Exhaust System, Magnaflow Performance, Stainless Steel, Natural
$698.28 List Price $903.65 Save $205.37 Availability: In Stock
  • Free Ground Shipping
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  • SKU#: M6615828
  • Quantity Sold: Assembly
  • Muffler Sound Level: Moderate
  • Recommended Use: Performance
  • Anticipated Ship Out Time: 1-2 Business Days
  • Attachment Style: Bolt/Clamp On
  • Exit Location: Split Rear
  • Exit Quantity: Dual
  • Main Piping Diameter: 2.5 in.
  • Muffler Configuration: Single inlet and dual outlet
  • Muffler Finish: Polished
  • Muffler Material: Stainless Steel
  • Muffler Quantity: One
  • Muffler Type: Straight Thru
  • Notes: Includes: Mounting hardware, 5 x 8 x 18 in. muffler
  • System Type: Cat-back
  • Tip Cut: Straight
  • Tip Diameter: 3.5 in.
  • Tip Edge Style: Rolled
  • Tip Finish: Polished
  • Tip Length: 18 in.
  • Tip Material: Stainless Steel
  • Tip Quantity: 2
  • Tip Shape: Round
  • Warranty: Lifetime Magnaflow limited warranty
see more Fits the following 2003 GMC Sierra 1500 HD submodels:
  • 8 Cyl 6.0L | SLE, SLT

More results for 2003 GMC Sierra 1500 HD Exhaust System

FLOWMASTER - AMERICAN THUNDER EXHAUST SYSTEMS
FLOWMASTER  – AMERICAN THUNDER EXHAUST SYSTEMS

Flowmaster’s American Thunder chambered exhaust system is dyno-proven to dramatically increase the power band, giving you more horsepower, torque, fuel... (see more)

MBRP EXHAUST SYSTEM

MBRP – INSTALLER SERIES EXHAUST SYSTEMS

When you bolt on a MBRP Installer Series Exhaust to your ride, you can expect an average 5 to 10 percent gain in horsepower and torque. An MBRP Exhaust... (see more)

MBRP EXHAUST SYSTEM

MBRP – XP SERIES EXHAUST SYSTEMS

When you bolt on a MBRP XP Series Exhaust to your ride, you can expect an average 5 to 10 percent gain in horsepower and torque. An MBRP Exhaust evacuates exhaust... (see more)

JBA DIRECT FIT EXHAUST SYSTEM
JBA's exhaust system is best known for delivering power, sound and quality. It is made of tough and durable stainless steel, this system provides large tubing diameter that allows more exhaust gasses... (see more)
DYNOMAX - SUPER TURBO EXHAUST SYSTEMS
DYNOMAX – SUPER TURBO EXHAUST SYSTEMS

Dynomax’s Super Turbo cat-back exhaust system will not only boost your image, but is dyno-proven to dramatically increase your vehicle’s power and performance... (see more)

BANKS MONSTER DIRECT FIT EXHAUST SYSTEM
Banks Monster Exhaust Systems are designed to reduce exhaust backpressure by 76% over OE exhaust and increase fuel economy and performance of your vehicle. They are made of mandrel bent stainless... (see more)