2021 Chevrolet Silverado 2500 HD Exhaust Upgrade Parts
35 parts verified to fit your 2021 Chevrolet Silverado 2500 HD for a complete exhaust upgrade. A moderate DIY project — estimated 2-5 hours.
Cat-Back Exhaust
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Banks Power
Banks Power 20-21 Chevy/GMC 2500/3500 6.6L Monster Sport Exhaust System
$727.22
aFe
aFe Apollo GT Series 4in 409SS Cat-Back 20-21 GM 2500/3500HD V8-6.6L L8T - Black Tip
$820.00
Gibson
Gibson 20-22 Chevrolet Silverado/GMC Sierra 2500-3500 HD Crew Cab Cat-Back Exhaust - Stainless
$679.24
aFe
aFe 20-23 GM 2500/3500HD V8 6.6L L8T Apollo GT Series 4in 409 SS Cat-Back Exhaust System
$750.00
Gibson
Gibson 20-22 Silverado/GMC Sierra 2500 HD 6.6L Crew Cab (Long Bed) Cat-Back Dual Extreme Exhaust
$777.66
Magnaflow
MagnaFlow 2022+ GM 2500/3500HD 6.6L Gas Single Passenger Side Rear Exit Cat-Back Exhaust
$1407.90
Borla
Borla 20-22 Chevrolet/GMC Silverado/Sierra 6.6L T-304 SS Cat-Back S-Type Exhaust - Brushed
$1324.99
Gibson
Gibson 20-21 Chevy Silverado 6.6L 2.5in Cat-Back Dual Split Exhaust System Stainless - Black Elite
$830.82
Headers
(5)primary
Victor Reinz
MAHLE Original 14-15 GM 5.3L Vin C Exhaust Manifold Set
$26.56
Wehrli
Wehrli 17-24 Chevrolet Duramax Billet Exhaust Manifold & Stainless Up Pipe Kit w/ Gaskets & Hardware
$2420.80
aFe
aFe Twisted 1-3/4in 304SS Shorty Header 20-23 GM 2500/3500HD 6.6L V8
$1223.85
Fel-Pro
Fel-Pro Chevrolet Silverado 1500 Exhaust Manifold Gasket Set
$27.76
Wehrli
Wehrli 17-24 L5P Duramax Billet Exhaust Manifold Kit w/ Gaskets and ARP Hardware
$1761.47
Mufflers
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Wehrli
Wehrli 2017-2024 Chevrolet 6.6L L5P Duramax Intake Resonator Delete Plug - Black Anodized
$32.77
Wehrli
Wehrli 17-24 Chevrolet 6.6L L5P Duramax 2in Stainless Up Pipe Kit w/Gaskets
$721.92
Fel-Pro
Fel-Pro Chevrolet Silverado 2500 HD Exhaust Pipe Flange Gasket
$11.87
Cometic Gasket
Cometic Corvette C7 Gen 5 SBC 6.2L LT1 .021in MLS Exhaust Gasket (1.920in)
$55.90
Wehrli
Wehrli 17-24 Chevrolet/GMC 6.6L L5P Duramax 3.5in Down Pipe
$353.28
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
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
Fel-Pro
Fel-Pro 03-13 Chevrolet Silverado 1500/00-09 Tahoe Exhaust Manifold Hardware Kit
$35.42
Exhaust Upgrade for Other Chevrolet Silverado 2500 HD Years
Other Jobs for Your 2021 Chevrolet Silverado 2500 HD
Frequently Asked Questions
What parts do I need for a exhaust upgrade on my 2021 Chevrolet Silverado 2500 HD?
A complete exhaust upgrade on the 2021 Chevrolet Silverado 2500 HD typically requires cat-back exhaust, headers, mufflers. All parts shown on this page are verified to fit your specific vehicle.
How long does a exhaust upgrade take on a 2021 Chevrolet Silverado 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 2021 Chevrolet Silverado 2500 HD?
Yes, all parts on this page are verified to fit the 2021 Chevrolet Silverado 2500 HD using VCDB fitment data from manufacturers. Our fitment information is cross-referenced with industry-standard vehicle databases to ensure accuracy.
What brands make exhaust upgrade parts for the 2021 Chevrolet Silverado 2500 HD?
We carry exhaust upgrade parts from trusted brands including Banks Power, aFe, Gibson, Magnaflow, and Borla. Filter by brand to find your preferred manufacturer.
How much does a exhaust upgrade cost for a 2021 Chevrolet Silverado 2500 HD?
The cost of a exhaust upgrade for the 2021 Chevrolet Silverado 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.