2020 GMC Sierra 2500 HD Exhaust Upgrade Parts
27 parts listed for your 2020 GMC Sierra 2500 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
(9)primary
aFe
aFe 20-23 GM 2500/3500HD V8 6.6L L8T Apollo GT Series 4in 409 SS Cat-Back Exhaust System
$750.00
aFe
aFe Apollo GT Series 3in 409SS Cat-Back Exhaust w/ Black Tip 2020 GM 2500/3500HD V8 6.6L L8T
$773.00
aFe
aFe Apollo GT Series 3in 409SS Cat-Back Exhaust w/ Polished Tip 2020 GM 2500/3500HD V8 6.6L L8T
$704.00
aFe
aFe Apollo GT Series 4in 409SS Cat-Back 20-21 GM 2500/3500HD V8-6.6L L8T - Black Tip
$820.00
Banks Power
Banks Power 20-21 Chevy/GMC 2500/3500 6.6L Monster Exhaust System - Black Tip
$727.00
Banks Power
Banks Power 20-21 Chevy/GMC 2500/3500 6.6L Monster Sport Exhaust System
$727.00
Borla
Borla 20-22 Chevrolet/GMC Silverado/Sierra 6.6L T-304 SS Cat-Back S-Type Exhaust - Brushed
$1347.99
Borla
Borla 20-22 Chevrolet/GMC Silverado/Sierra 6.6L T-304 SS Cat-Back S-Type Exhaust - Brushed
$1324.99
Headers
(5)primary
aFe
aFe Twisted 1-3/4in 304SS Shorty Header 20-23 GM 2500/3500HD 6.6L V8
$1236.65
Fel-Pro
Fel-Pro Chevrolet Silverado 1500 Exhaust Manifold Gasket Set
$24.61
Victor Reinz
MAHLE Original 14-15 GM 5.3L Vin C Exhaust Manifold Set
$39.30
Wehrli
Wehrli 17-24 Chevrolet Duramax Billet Exhaust Manifold & Stainless Up Pipe Kit w/ Gaskets & Hardware
$2420.80
Wehrli
Wehrli 17-24 L5P Duramax Billet Exhaust Manifold Kit w/ Gaskets and ARP Hardware
$1761.47
Mufflers
(13)primary
aFe
aFe Large Bore-HD 4in 409SS DPF-Back Exhaust System w/Black Tip 20 GM Diesel Trucks V8-6.6L (td) L5P
$808.00
aFe
aFe Large Bore-HD 4in 409SS DPF-Back Exhaust System w/Polished Tips 20 GM Diesel Trucks V8-6.6L
$734.00
aFe
aFe Large Bore-HD 5 IN 409 SS DPF-Back Exhaust System w/Black Tip 20-21 GM Truck V8-6.6L
$568.00
aFe
aFe Large Bore-HD 5 IN 409 SS DPF-Back Exhaust System w/Polished Tip 20-23 GM Truck V8-6.6L
$533.00
Borla
Borla 20-22 Chevrolet/GMC Silverado/Sierra 6.6L T-304 Stainless Steel Extension Pipe - Brushed
$149.99
CORSA Performance
Corsa Chevrolet Duramax Diesel 6.2L Muffler
$583.68
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
Exhaust Upgrade for Other GMC Sierra 2500 HD Years
Other Jobs for Your 2020 GMC Sierra 2500 HD
Frequently Asked Questions
What parts do I need for a exhaust upgrade on my 2020 GMC Sierra 2500 HD?
A complete exhaust upgrade on the 2020 GMC Sierra 2500 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 2020 GMC Sierra 2500 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 2020 GMC Sierra 2500 HD?
These parts are listed for the 2020 GMC Sierra 2500 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 2020 GMC Sierra 2500 HD?
We carry exhaust upgrade parts from trusted brands including aFe, Banks Power, Borla, Fel-Pro, and Victor Reinz. Filter by brand to find your preferred manufacturer.
How much does a exhaust upgrade cost for a 2020 GMC Sierra 2500 HD?
The cost of a exhaust upgrade for the 2020 GMC Sierra 2500 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.