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Exhaust System for 2003 GMC Sierra 1500

We have 98 Items In-stock. Select your vehicle's Submodel to continue.

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 Performance Exhaust System - Natural, Stainless Steel

$719.24 $930.79 You Save $211.55 (23%)
Add to Cart
Availability: In Stock
Only from APW Rewards
  • Brand SKU#: Magnaflow 15794
  • Series: Magnaflow Performance
  • Material: Stainless Steel
  • Color/Finish: Natural
  • 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 Submodels

  • 6 Cyl 4.3L | SLE, Base, WT, SL
  • 8 Cyl 4.8L | Base, SLE, WT, SL
  • 8 Cyl 5.3L | Base, SLE, WT, SL
See more

Magnaflow Performance Exhaust System - Natural, Stainless Steel

$661.69 $856.31 You Save $194.62 (23%)
Add to Cart
Availability: In Stock
Only from APW Rewards
  • Brand SKU#: Magnaflow 15778
  • Series: Magnaflow Performance
  • Material: Stainless Steel
  • Color/Finish: Natural
  • Quantity Sold: Assembly
  • Muffler Sound Level: Moderate
  • Recommended Use: Performance
  • Advertised Power Gains: 10% increase in horsepower
  • 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: Single Inlet and 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 Submodels

  • 6 Cyl 4.3L | SLE, SLT, Base, SL
  • 8 Cyl 4.8L | SLT, Base, SLE, SL
  • 8 Cyl 5.3L | Base, SLE, SLT, SL
See more

Magnaflow Performance Exhaust System - Natural, Stainless Steel

$719.24 $930.78 You Save $211.54 (23%)
Add to Cart
Availability: In Stock
Only from APW Rewards
  • Brand SKU#: Magnaflow 15792
  • Series: Magnaflow Performance
  • Material: Stainless Steel
  • Color/Finish: Natural
  • 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 Submodels

  • 6 Cyl 4.3L | SLE, SLT, Base, SL
  • 8 Cyl 4.8L | SLT, Base, SLE, SL
  • 8 Cyl 5.3L | Base, SLE, SLT, SL
See more
Customer Review: (see review/s)
  • This exhaust is the best thing I have done to my truck yet.It is very easy to install, usually the words "bolt on installation"scare me,but not in this case.Everything fit like a glove!! It has a good low rumble to it and you can still hear the radio.I would reccomend this exhaust to ANYONE, plus, since its stainless you'll never have to buy another one!!!!Perfect!!

    posted by: Radman on September 18, 2009

  • view all 2 reviews

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 Split rear Exhaust System - Natural, Aluminized Steel

$370.74 $731.53 You Save $360.79 (49%)
Add to Cart
Availability: In Stock
Only from APW Rewards
  • Brand SKU#: Gibson 5543
  • Series: Gibson Split rear
  • Material: Aluminized Steel
  • Color/Finish: Natural
  • Quantity Sold: Assembly
  • Muffler Sound Level: Aggressive
  • Recommended Use: Performance
  • Advertised Power Gains: 15-20 h.p.
  • Anticipated Ship Out Time: 1-2 Business Days
  • Attachment Style: Bolt-On
  • Exit Location: Straight out the back
  • Exit Quantity: Dual
  • Includes: Muffler
  • Main Piping Diameter: 2.5 in.
  • Muffler Configuration: Single Inlet and Dual 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 Submodels

  • 6 Cyl 4.3L | SLE, SLT, SL, Base, WT
  • 8 Cyl 4.8L | SLT, SLE, SL, Base, WT
  • 8 Cyl 5.3L | SLE, SLT, SL, Base, WT
See more
Customer Review: (see review/s)
  • I expected an easy install since i was replacing a gibson exhaust system that rusted out. The clearance between the spare tire and the shock is far less than the inch the instructions recommend, even after i cut 1 1/4 inch off the front end of the driver's side tailpipe.

    posted by: repeat offender on April 16, 2008

Gibson Split rear Exhaust System - Natural, Aluminized Steel

$396.30 $731.53 You Save $335.23 (46%)
Add to Cart
Availability: In Stock
Only from APW Rewards
  • Brand SKU#: Gibson 5542
  • Series: Gibson Split rear
  • Material: Aluminized Steel
  • Color/Finish: Natural
  • Quantity Sold: Assembly
  • Muffler Sound Level: Aggressive
  • Recommended Use: Performance
  • Advertised Power Gains: 15-20 h.p.
  • Anticipated Ship Out Time: 1-2 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
  • Main Piping Diameter: 2.5 in.
  • Muffler Configuration: Single Inlet and Dual 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 Submodels

  • 6 Cyl 4.3L | SLE, SL, Base, WT
  • 8 Cyl 4.8L | SLE, SL, Base, WT
  • 8 Cyl 5.3L | SLE, SL, Base, WT
See more

Gibson Split rear Exhaust System - Natural, Stainless Steel

$538.15 $953.99 You Save $415.84 (44%)
Add to Cart
Availability: In Stock
Only from APW Rewards
  • Brand SKU#: Gibson 65542
  • Series: Gibson Split rear
  • Material: Stainless Steel
  • Color/Finish: Natural
  • Quantity Sold: Assembly
  • Muffler Sound Level: Aggressive
  • Recommended Use: Performance
  • Advertised Power Gains: 15-20 h.p.
  • Anticipated Ship Out Time: 1-2 Business Days
  • Attachment Style: Bolt-On
  • Exit Location: Straight out the back
  • Exit Quantity: Dual
  • Includes: Heavy-duty clamp
  • Main Piping Diameter: 2.5 in.
  • Muffler Configuration: Single Inlet and Dual 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 Submodels

  • 6 Cyl 4.3L | SLE, SL, Base, WT
  • 8 Cyl 4.8L | SLE, SL, Base, WT
  • 8 Cyl 5.3L | SLE, SL, Base, WT
See more
Customer Review: (see review/s)
  • All hardware included to do a relative easy install. The exhaust system looks great and sounds even better. The chrome tips really look great out of the back of my Black Chevy silverado.

    posted by: Shellman on September 24, 2012

  • view all 2 reviews

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 Swept Side Exhaust System - Natural, Aluminized Steel

$342.82 $607.91 You Save $265.09 (44%)
Add to Cart
Availability: In Stock
Only from APW Rewards
  • Brand SKU#: Gibson 315536
  • Series: Gibson Swept Side
  • Material: Aluminized Steel
  • Color/Finish: Natural
  • Quantity Sold: Assembly
  • Muffler Sound Level: Moderate to Aggressive
  • Recommended Use: Performance
  • Advertised Power Gains: 15-20 h.p.
  • Anticipated Ship Out Time: 1-2 Business Days
  • Attachment Style: Bolt-On
  • Exit Location: Behind Rear Tire
  • Exit Quantity: Single
  • Includes: Muffler
  • Main Piping Diameter: 3.0 in.
  • Muffler Configuration: Single 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: One
  • Tip Shape: Round
  • Warranty: Lifetime Gibson limited warranty
See more

Fits the following 2003 GMC Sierra 1500 Submodels

  • 6 Cyl 4.3L | SLE, SLT, Base, SL, WT
  • 8 Cyl 4.8L | SLT, Base, SLE, SL, WT
  • 8 Cyl 5.3L | Base, SLE, SLT, SL, WT
See more
Customer Review: (see review/s)
  • Had to take to exhaust shop for install. Head pipe had to be bent somewhat in order to fit correctly on flange and for system to align correctly with hangers. They also cut and re-welded the hangers to the system in order to tuck nicely underneath truck. Looks great now but 130.00 to have installed not so much. The other two Gibson systems I purchased (F150/Ram) I installed with no problems. Sounds very good with modest performance gain if any.

    posted by: 06Z71 on June 19, 2014

  • view all 2 reviews

Gibson Swept Side Exhaust System - Natural, Stainless Steel

$464.95 $835.95 You Save $371.00 (44%)
Add to Cart
Availability: In Stock
Only from APW Rewards
  • Brand SKU#: Gibson 615536
  • Series: Gibson Swept Side
  • Material: Stainless Steel
  • Color/Finish: Natural
  • Quantity Sold: Assembly
  • Muffler Sound Level: Moderate to Aggressive
  • Recommended Use: Performance
  • Advertised Power Gains: 8-10 h.p.
  • Anticipated Ship Out Time: 1-2 Business Days
  • Attachment Style: Bolt-On
  • Exit Location: Behind Rear Tire
  • Exit Quantity: Single
  • Includes: Pipes, zinc-plated factory style hangers, heavy-duty clamps
  • Main Piping Diameter: 3 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: One
  • Tip Shape: Round
  • Warranty: Lifetime Gibson limited warranty
See more

Fits the following 2003 GMC Sierra 1500 Submodels

  • 6 Cyl 4.3L | SLE, SLT, Base, SL, WT
  • 8 Cyl 4.8L | SLT, Base, SLE, SL, WT
  • 8 Cyl 5.3L | Base, SLE, SLT, SL, WT
See more

Gibson Swept Side Exhaust System - Natural, Aluminized Steel

$352.76 $607.91 You Save $255.15 (42%)
Add to Cart
Availability: In Stock
Only from APW Rewards
  • Brand SKU#: Gibson 315526
  • Series: Gibson Swept Side
  • Material: Aluminized Steel
  • Color/Finish: Natural
  • Quantity Sold: Assembly
  • Muffler Sound Level: Moderate to Aggressive
  • Recommended Use: Performance
  • Advertised Power Gains: 15-20 h.p.
  • Anticipated Ship Out Time: 1-2 Business Days
  • Attachment Style: Bolt-On
  • Exit Location: Behind Rear Tire
  • Exit Quantity: Single
  • Includes: Pipes, zinc-plated factory style hangers, heavy-duty clamps
  • Main Piping Diameter: 3.0 in.
  • Muffler Configuration: Single 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: One
  • Tip Shape: Round
  • Warranty: Lifetime Gibson limited warranty
See more

Fits the following 2003 GMC Sierra 1500 Submodels

  • 6 Cyl 4.3L | SLE, Base, SL, WT
  • 8 Cyl 4.8L | Base, SLE, SL, WT
  • 8 Cyl 5.3L | Base, SLE, SL, WT
See more

Gibson - Super Truck Cat-Back Exhaust Systems

GIBSON – SUPER TRUCK CAT-BACK EXHAUST SYSTEMS

Gibson’s Super Truck cat-back exhaust system is dyno-proven to dramatically increase your truck’s horsepower and acceleration – and of course also gives you that great NASCAR race 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.

  • 2 tailpipes that exit right before the rear tires
  • Gives you that NASCAR race truck style and loud, aggressive sound
  • Made with race enthusiasts in mind
  • Stainless exhausts backed by a lifetime warranty
  • Patented Superflow technology means dramatically more efficient exhaust flow
  • Comes in aluminized or stainless steel
  • Proven to improve acceleration and horsepower
  • Mandrel-bent tubing allows for continuous airflow
  • Sport Truck tips feature sleek clampless connection
  • Dyno-tested
  • Direct fit by vehicle year, make and model
  • Made in America
  • Legal in all 50 states

Gibson Super Truck Exhaust System - Natural, Stainless Steel

$378.47 $678.62 You Save $300.15 (44%)
Add to Cart
Availability: In Stock
Only from APW Rewards
  • Brand SKU#: Gibson 65516
  • Series: Gibson Super Truck
  • Material: Stainless Steel
  • Color/Finish: Natural
  • Quantity Sold: Assembly
  • Muffler Sound Level: Aggressive
  • Recommended Use: Performance
  • Advertised Power Gains: 15-20 h.p.
  • Anticipated Ship Out Time: 1-2 Business Days
  • Attachment Style: Bolt-On
  • Exit Location: In Front of Rear Tire
  • Exit Quantity: Dual
  • Includes: Muffler
  • Main Piping Diameter: 2.5 in.
  • Muffler Configuration: Single Inlet and Dual 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: 6 in.
  • Tip Edge Style: Non-Rolled
  • Tip Finish: Polished
  • Tip Length: 6 in.
  • Tip Material: Stainless Steel
  • Tip Quantity: Two
  • Tip Shape: Rectangle
  • Warranty: Lifetime Gibson limited warranty
See more

Fits the following 2003 GMC Sierra 1500 Submodels

  • 6 Cyl 4.3L | SLE, SL, Base, WT
  • 8 Cyl 4.8L | SLE, SL, Base, WT
  • 8 Cyl 5.3L | SLE, SL, Base, WT
See more

Gibson Super Truck Exhaust System - Natural, Stainless Steel

$386.84 $678.62 You Save $291.78 (43%)
Add to Cart
Availability: In Stock
Only from APW Rewards
  • Brand SKU#: Gibson 65518
  • Series: Gibson Super Truck
  • Material: Stainless Steel
  • Color/Finish: Natural
  • Quantity Sold: Assembly
  • Muffler Sound Level: Aggressive
  • Recommended Use: Performance
  • Advertised Power Gains: 15-20 h.p.
  • Anticipated Ship Out Time: 1-2 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
  • Main Piping Diameter: 2.5 in.
  • Muffler Configuration: Single Inlet and Dual 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: 6 in.
  • Tip Edge Style: Non-Rolled
  • Tip Finish: Polished
  • Tip Length: 6 in.
  • Tip Material: Stainless Steel
  • Tip Quantity: Two
  • Tip Shape: Rectangle
  • Warranty: Lifetime Gibson limited warranty
See more

Fits the following 2003 GMC Sierra 1500 Submodels

  • 6 Cyl 4.3L | SLE, SLT, SL, Base, WT
  • 8 Cyl 4.8L | SLT, SLE, SL, Base, WT
  • 8 Cyl 5.3L | SLE, SLT, SL, Base, WT
See more

Gibson Super Truck Exhaust System - Natural, Aluminized Steel

$332.82 $607.91 You Save $275.09 (45%)
Add to Cart
Availability: In Stock
Only from APW Rewards
  • Brand SKU#: Gibson 5511
  • Series: Gibson Super Truck
  • Material: Aluminized Steel
  • Color/Finish: Natural
  • Quantity Sold: Assembly
  • Muffler Sound Level: Aggressive
  • Recommended Use: Performance
  • Advertised Power Gains: 15-20 h.p.
  • Anticipated Ship Out Time: 1-2 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
  • Main Piping Diameter: 3 in. / 2.5 in.
  • Muffler Configuration: Single Inlet and Dual 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: 6 in.
  • Tip Edge Style: Non-Rolled
  • Tip Finish: Polished
  • Tip Length: 6 in.
  • Tip Material: Stainless Steel
  • Tip Quantity: Two
  • Tip Shape: Rectangle
  • Warranty: Lifetime Gibson limited warranty
See more

Fits the following 2003 GMC Sierra 1500 Submodels

  • 6 Cyl 4.3L | SLE, SLT, Base, SL
  • 8 Cyl 4.8L | SLT, Base, SLE, SL
  • 8 Cyl 5.3L | Base, SLE, SLT, SL
See more

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 Dual Extreme Exhaust System - Natural, Aluminized Steel

$401.53 $731.53 You Save $330.00 (45%)
Add to Cart
Availability: In Stock
Only from APW Rewards
  • Brand SKU#: Gibson 5003
  • Series: Gibson Dual Extreme
  • Material: Aluminized Steel
  • Color/Finish: Natural
  • Quantity Sold: Assembly
  • Muffler Sound Level: Aggressive
  • Recommended Use: Performance
  • Advertised Power Gains: 15-20 h.p.
  • Anticipated Ship Out Time: 1-2 Business Days
  • Attachment Style: Bolt-On
  • Exit Location: Behind Each Rear Tire
  • Exit Quantity: Dual
  • Includes: Muffler
  • Main Piping Diameter: 2.5 in.
  • Muffler Configuration: Single Inlet and Dual 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 Submodels

  • 6 Cyl 4.3L | SLE, SLT, SL, Base, WT
  • 8 Cyl 4.8L | SLT, SLE, SL, Base, WT
  • 8 Cyl 5.3L | SLE, SLT, SL, Base, WT
See more
Customer Review: (see review/s)
  • sounds excellent and gave more HP looks good to. easy to install.

    posted by: 6 on April 13, 2009

Gibson Dual Extreme Exhaust System - Natural, Stainless Steel

$466.76 $953.99 You Save $487.23 (51%)
Add to Cart
Availability: In Stock
Only from APW Rewards
  • Brand SKU#: Gibson 65002
  • Series: Gibson Dual Extreme
  • Material: Stainless Steel
  • Color/Finish: Natural
  • Quantity Sold: Assembly
  • Muffler Sound Level: Aggressive
  • Recommended Use: Performance
  • Advertised Power Gains: 15-20 h.p.
  • Anticipated Ship Out Time: 1-2 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 kits, zip tie, spare tire bracket
  • Main Piping Diameter: 2.5 in.
  • Muffler Configuration: Single Inlet and Dual 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
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Fits the following 2003 GMC Sierra 1500 Submodels

  • 6 Cyl 4.3L | SLE, Base, SL, WT
  • 8 Cyl 4.8L | Base, SLE, SL, WT
  • 8 Cyl 5.3L | Base, SLE, SL, WT
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Gibson Dual Extreme Exhaust System - Natural, Stainless Steel

$528.91 $953.99 You Save $425.08 (45%)
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Availability: In Stock
Only from APW Rewards
  • Brand SKU#: Gibson 65003
  • Series: Gibson Dual Extreme
  • Material: Stainless Steel
  • Color/Finish: Natural
  • Quantity Sold: Assembly
  • Muffler Sound Level: Aggressive
  • Recommended Use: Performance
  • Advertised Power Gains: 15-20 h.p.
  • Anticipated Ship Out Time: 1-2 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 kits, zip ties
  • Main Piping Diameter: 2.5 in.
  • Muffler Configuration: Single Inlet and Dual 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 Submodels

  • 6 Cyl 4.3L | SLE, SLT, SL, Base, WT
  • 8 Cyl 4.8L | SLT, SLE, SL, Base, WT
  • 8 Cyl 5.3L | SLE, SLT, SL, Base, WT
See more

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