2003 GMC Sierra 1500 HD Exhaust Upgrade Parts
47 parts listed for your 2003 GMC Sierra 1500 HD for a complete exhaust upgrade. Choose your trim on product pages to confirm exact fit. A moderate DIY project - estimated 2-5 hours.
Cat-Back Exhaust
(1)primary
Headers
(13)primary
BBK
BBK 99-04 GM Truck SUV 6.0 Shorty Tuned Length Exhaust Headers - 1-3/4 Silver Ceramic
$598.26
BBK
BBK 99-04 GM Truck SUV 6.0 Shorty Tuned Length Exhaust Headers - 1-3/4 Titanium Ceramic
$524.79
BD Diesel
BD Diesel Driver Side Exhaust Manifold - 02-13 Chevy Silverado 1500 & GMC Sierra 1500 V8
$323.78
BD Diesel
BD Diesel Exhaust Manifold Kit - 02-13 Chevy Silverado 1500 & GMC Sierra 1500 V8
$626.83
BD Diesel
BD Diesel Passenger Side Exhaust Manifold - 02-13 Chevy Silverado 1500 & GMC Sierra 1500 V8
$323.78
Fel-Pro
Fel-Pro 09-13 Chevrolet Silverado 1500/09-13 Corvette/12-15 Camaro Exhaust Manifold Gasket Set
$13.13
Fel-Pro
Fel-Pro Chevrolet Silverado 1500 MSB 92467 Exhaust Manifold Gasket Set Bolts Included
$57.78
Gibson
Gibson 02-06 Cadillac Escalade Base 6.0L 1-5/8in 16 Gauge Performance Header - Ceramic Coated
$861.53
Mufflers
(33)primary
Cometic Gasket
Cometic GM Gen-3/4 Small Block V8 MLS Exhaust Manifold Gasket Set
$61.43
Fel-Pro
Fel-Pro 03-13 Chevrolet Silverado 1500/00-09 Tahoe Exhaust Manifold Hardware Kit
$31.39
Fel-Pro
Fel-Pro 09-13 Chevrolet Silverado 1500/08-13 Tahoe Exhaust Pipe Flange Gasket
$5.84
Fel-Pro
Fel-Pro Chevrolet Silverado 1500 ES 75106 Exhaust Flange Stud and Nut
$25.80
Fel-Pro
Fel-Pro Chevrolet Silverado 2500 HD Exhaust Pipe Flange Gasket
$5.90
Magnaflow
Magnaflow 2003 GMC Savana 3500 6.0L Direct Fit Converter
$2035.00
Magnaflow
Magnaflow 2003 GMC Savana 3500 6.0L Direct Fit Converter
$2003.00
Magnaflow
MagnaFlow Conv DF 00-06 Chevy/GMC D/S OEM
$782.00
Exhaust Upgrade for Other GMC Sierra 1500 HD Years
Other Jobs for Your 2003 GMC Sierra 1500 HD
Frequently Asked Questions
What parts do I need for a exhaust upgrade on my 2003 GMC Sierra 1500 HD?
A complete exhaust upgrade on the 2003 GMC Sierra 1500 HD typically requires cat-back exhaust, headers, mufflers. This page groups parts commonly associated with that year, make, and model; confirm your trim on product pages for exact fit.
How long does a exhaust upgrade take on a 2003 GMC Sierra 1500 HD?
A exhaust upgrade typically takes 2-5 hours and is rated as moderate difficulty. Actual time may vary depending on your experience and the specific parts being replaced.
Can I do a exhaust upgrade myself?
A exhaust upgrade is a moderate DIY project. If you have some mechanical experience and the right tools, you can handle it. Otherwise, consider having a professional do the work.
Are these parts guaranteed to fit my 2003 GMC Sierra 1500 HD?
These parts are listed for the 2003 GMC Sierra 1500 HD using manufacturer fitment data. Some products fit every trim, while others require trim confirmation. Use your trim in My Garage or the product page fitment checker to confirm exact fit.
What brands make exhaust upgrade parts for the 2003 GMC Sierra 1500 HD?
We carry exhaust upgrade parts from trusted brands including Gibson, BBK, BD Diesel, Fel-Pro, and Cometic Gasket. Filter by brand to find your preferred manufacturer.
How much does a exhaust upgrade cost for a 2003 GMC Sierra 1500 HD?
The cost of a exhaust upgrade for the 2003 GMC Sierra 1500 HD depends on the parts and brands you choose. Browse the parts on this page to see current pricing. Doing the work yourself saves significantly on labor costs.