2003 Chevrolet Avalanche 2500 Exhaust Upgrade Parts
34 parts listed for your 2003 Chevrolet Avalanche 2500 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
(3)primary
Gibson
Gibson 00-01 Chevrolet Suburban 2500 Base 6.0L 3in Cat-Back Single Exhaust - Aluminized
$623.21
Gibson
Gibson 00-06 Chevrolet Suburban 2500 LS 6.0L 3in Cat-Back Single Exhaust - Stainless
$809.01
JBA
JBA 00-06 Chevrolet Avalanche/Suburban 6.0L/8.1L 409SS Pass Side Single Exit Cat-Back Exhaust
$528.73
Headers
(7)primary
Fel-Pro
Fel-Pro Chevrolet Silverado 2500 HD MS 95840 Exhaust Manifold Gasket Set
$14.73
Gibson
Gibson 01-03 Chevrolet Silverado 3500 Base 8.1L 1-3/4in 16 Gauge Performance Header - Ceramic Coated
$912.26
Gibson
Gibson 01-03 Chevrolet Silverado 3500 Base 8.1L 1-3/4in 16 Gauge Performance Header - Stainless
$720.32
JBA
JBA 01-03 Gm Truck 8.1L BBC w/o EGR/A.I.R. 1-3/4in Primary Raw 409SS Cat4Ward Header
$672.59
JBA
JBA 01-03 Gm Truck 8.1L BBC w/o EGR/A.I.R. 1-3/4in Primary Silver Ctd Cat4Ward Header
$851.03
Victor Reinz
MAHLE Original Chevrolet C2500 00-96 Exhaust Manifold Set
$20.28
Victor Reinz
MAHLE Original Chevrolet Avalanche 2500 06-02 Manifold Gasket
$17.66
Mufflers
(24)primary
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
JBA
JBA 01-06 GM Truck 8.1L (w/4L80-E Trans) 409SS Emissions Legal Mid Pipes
$346.98
JBA
JBA 01-06 GM Truck 8.1L (w/Allison Trans) 409SS Emissions Legal Mid Pipes
$346.98
Magnaflow
MagnaFlow Conv DF 02-03 Avalanche 8.1 Driver Side
$634.00
Magnaflow
MagnaFlow Conv DF 02-03 Avalanche 8.1 DS OEM
$691.00
Magnaflow
MagnaFlow Conv DF 02-03 Avalanche 8.1 Passenger Side
$742.00
Exhaust Upgrade for Other Chevrolet Avalanche 2500 Years
Other Jobs for Your 2003 Chevrolet Avalanche 2500
Frequently Asked Questions
What parts do I need for a exhaust upgrade on my 2003 Chevrolet Avalanche 2500?
A complete exhaust upgrade on the 2003 Chevrolet Avalanche 2500 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 Chevrolet Avalanche 2500?
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 Chevrolet Avalanche 2500?
These parts are listed for the 2003 Chevrolet Avalanche 2500 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 Chevrolet Avalanche 2500?
We carry exhaust upgrade parts from trusted brands including Gibson, JBA, Fel-Pro, Victor Reinz, and Magnaflow. Filter by brand to find your preferred manufacturer.
How much does a exhaust upgrade cost for a 2003 Chevrolet Avalanche 2500?
The cost of a exhaust upgrade for the 2003 Chevrolet Avalanche 2500 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.