36+ 2003 GMC Sierra 1500 Cat-Back Exhaust Parts

Cat-Back Exhaust (36 products)

Magnaflow

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MagnaFlow Sys C/B 03 GM Silverado 4.8/5.3L Ec

$1135.19

Gibson

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Gibson 99-05 Chevrolet Silverado 1500 Base 4.3L 2.5in Cat-Back Super Truck Exhaust - Stainless

$599.83

Corsa 2002-2006 GMC Sierra Denali Ext Cab/Short Bed 1500 6.0L V8 Polished Sport Cat-Back Exhaust

CORSA Performance

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Corsa 2002-2006 GMC Sierra Denali Ext Cab/Short Bed 1500 6.0L V8 Polished Sport Cat-Back Exhaust

$1041.41

Borla

Fits All Trims

Borla 99-07 GMC Sierra / 99-07 Chevrolet Silverado SS Catback Exhaust

$844.99

Magnaflow

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MagnaFlow Sys C/B 03 GM 1500 Silverado 5.3L V

$1045.41

Banks Power

Fits All Trims

Banks Power 03-06 Chevy 4.8-5.3L EC/CCSB Stinger System - SS Single Exhaust w/ Chrome Tip

$1419.00

Corsa 1999-06 Chevrolet Silverado Reg. Cab/Short Bed 1500 4.8L V8 Polished Touring Cat-Back Exhaust

CORSA Performance

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Corsa 1999-06 Chevrolet Silverado Reg. Cab/Short Bed 1500 4.8L V8 Polished Touring Cat-Back Exhaust

$1492.99

Gibson

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Gibson 99-05 Chevrolet Silverado 1500 Base 4.3L 2.5in Cat-Back Super Truck Exhaust - Stainless

$553.40

aFe MACHForce Exhausts Cat-Back SS Tips 99-03 GM Gas Trucks 1500 V6-4.3L/V8-4.8/5.3L

aFe

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aFe MACHForce Exhausts Cat-Back SS Tips 99-03 GM Gas Trucks 1500 V6-4.3L/V8-4.8/5.3L

$884.00

JBA 99-06 Chevrolet Silverado1500 Ext Cab Short Bed 4.3-5.3L 409SS Single Cat-Back Exhaust

JBA

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JBA 99-06 Chevrolet Silverado1500 Ext Cab Short Bed 4.3-5.3L 409SS Single Cat-Back Exhaust

$528.73

Banks Power

Fits All Trims

Banks Power 99-06 Chevy 4.8-5.3L SCSB Stinger System

$1399.00

Gibson

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Gibson 99-05 Chevrolet Silverado 1500 Base 4.3L 2.5in Cat-Back Dual Split Exhaust - Stainless

$733.41

Corsa 1999-2006 GMC Sierra 4.8L V8 3in Cat-Back Single Side w Twin 4in Black Pro-Series Tips

CORSA Performance

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Corsa 1999-2006 GMC Sierra 4.8L V8 3in Cat-Back Single Side w Twin 4in Black Pro-Series Tips

$1533.95

Gibson

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Gibson 99-05 Chevrolet Silverado 1500 Base 4.3L 2.5in Cat-Back Dual Extreme Exhaust - Stainless

$733.41

Borla

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Borla 99-07 Chevy Silverado 5.3L/4.8L Catback Exhaust

$1601.29

Corsa 1999-2007 Chevrolet Silverado Ext. Cab/Short Bed 1500 4.8L V8 Polished Sport Cat-Back Exhaust

CORSA Performance

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Corsa 1999-2007 Chevrolet Silverado Ext. Cab/Short Bed 1500 4.8L V8 Polished Sport Cat-Back Exhaust

$1041.41

Gibson

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Gibson 99-05 Chevrolet Silverado 1500 Base 4.3L 2.5in Cat-Back Dual Split Exhaust - Aluminized

$671.08

Gibson

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Gibson 99-03 GMC Sierra 1500 SL 5.3L 2.5in Cat-Back Dual Extreme Exhaust - Black Elite

$815.74

Gibson

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Gibson 99-06 Chevrolet Silverado 1500 LS 4.3L 2.5in Cat-Back Dual Sport Exhaust - Stainless

$733.41

Gibson

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Gibson 99-05 Chevrolet Silverado 1500 Base 4.3L 2.5in Cat-Back Dual Extreme Exhaust - Aluminized

$675.30

Frequently Asked Questions

Do these parts fit my 2003 GMC Sierra 1500?

This page groups parts listed for the 2003 GMC Sierra 1500. Some products fit every trim, while others depend on submodel, engine, drivetrain, or brake package. Use your trim in My Garage or the product page fitment check to confirm exact fit.

What cat-back exhaust options are available for my 2003 GMC Sierra 1500?

We offer a wide selection of cat-back exhaust parts for the 2003 GMC Sierra 1500. This page narrows the catalog to the year, make, and model; use your trim on product pages to confirm exact fit when a part only fits certain submodels.

What brands make parts for the 2003 GMC Sierra 1500?

We carry parts from trusted brands including Gibson, CORSA Performance, Magnaflow, aFe, and Banks Power, plus many more. Filter by brand to find your preferred manufacturer.

How fast do 2003 GMC Sierra 1500 parts ship?

Most in-stock items ship within 1-2 business days. Shipping rates are calculated at checkout based on your location.

What warranty do your 2003 GMC Sierra 1500 parts come with?

Warranty coverage varies by manufacturer but typically ranges from 1 year to lifetime. Each product page includes specific warranty information from the manufacturer.

2003 GMC Sierra 1500(5,353 parts)

2003 GMC Sierra 1500(5,353 parts)

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Other GMC Sierra 1500 Years

Cat-Back Exhaust (36 products)

MagnaFlow Sys C/B 03 GM Silverado 4.8/5.3L Ec

Gibson 99-05 Chevrolet Silverado 1500 Base 4.3L 2.5in Cat-Back Super Truck Exhaust - Stainless

Corsa 2002-2006 GMC Sierra Denali Ext Cab/Short Bed 1500 6.0L V8 Polished Sport Cat-Back Exhaust

Borla 99-07 GMC Sierra / 99-07 Chevrolet Silverado SS Catback Exhaust

MagnaFlow Sys C/B 03 GM 1500 Silverado 5.3L V

Banks Power 03-06 Chevy 4.8-5.3L EC/CCSB Stinger System - SS Single Exhaust w/ Chrome Tip

Corsa 1999-06 Chevrolet Silverado Reg. Cab/Short Bed 1500 4.8L V8 Polished Touring Cat-Back Exhaust

Gibson 99-05 Chevrolet Silverado 1500 Base 4.3L 2.5in Cat-Back Super Truck Exhaust - Stainless

aFe MACHForce Exhausts Cat-Back SS Tips 99-03 GM Gas Trucks 1500 V6-4.3L/V8-4.8/5.3L

JBA 99-06 Chevrolet Silverado1500 Ext Cab Short Bed 4.3-5.3L 409SS Single Cat-Back Exhaust

Banks Power 99-06 Chevy 4.8-5.3L SCSB Stinger System

Gibson 99-05 Chevrolet Silverado 1500 Base 4.3L 2.5in Cat-Back Dual Split Exhaust - Stainless

Corsa 1999-2006 GMC Sierra 4.8L V8 3in Cat-Back Single Side w Twin 4in Black Pro-Series Tips

Gibson 99-05 Chevrolet Silverado 1500 Base 4.3L 2.5in Cat-Back Dual Extreme Exhaust - Stainless

Borla 99-07 Chevy Silverado 5.3L/4.8L Catback Exhaust

Corsa 1999-2007 Chevrolet Silverado Ext. Cab/Short Bed 1500 4.8L V8 Polished Sport Cat-Back Exhaust

Gibson 99-05 Chevrolet Silverado 1500 Base 4.3L 2.5in Cat-Back Dual Split Exhaust - Aluminized

Gibson 99-03 GMC Sierra 1500 SL 5.3L 2.5in Cat-Back Dual Extreme Exhaust - Black Elite

Gibson 99-06 Chevrolet Silverado 1500 LS 4.3L 2.5in Cat-Back Dual Sport Exhaust - Stainless

Gibson 99-05 Chevrolet Silverado 1500 Base 4.3L 2.5in Cat-Back Dual Extreme Exhaust - Aluminized

Frequently Asked Questions

Do these parts fit my 2003 GMC Sierra 1500?

What cat-back exhaust options are available for my 2003 GMC Sierra 1500?

What brands make parts for the 2003 GMC Sierra 1500?

How fast do 2003 GMC Sierra 1500 parts ship?

What warranty do your 2003 GMC Sierra 1500 parts come with?