2018 GMC Sierra 3500 HD Exhaust Upgrade Parts
64 parts listed for your 2018 GMC Sierra 3500 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
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Banks Power
Banks Power 17-19 Chevy Duramax L5P 2500/3500 Monster Exhaust System
$562.18
Banks Power
Banks Power 17-19 Chevy Duramax L5P 2500/3500 Monster Exhaust System w/ Black Tip
$562.18
Banks Power
Banks Power 17+ GM Duramax L5P 2500/3500 Monster Exhaust System - SS Single Exhaust w/ Black Tip
$531.46
Banks Power
Banks Power 17+ GM Duramax L5P 2500/3500 Monster Exhaust System - SS Single Exhaust w/ Chrome Tip
$531.46
Borla
Borla 15-19 Chevy Silverado 2500 6.0L CC/STD Bed/153.7in WB S-Type Catback Exhaust
$1419.99
Borla
Borla 15-19 Chevy Silverado 2500 6.0L CC/STD Bed/153.7in WB S-Type Catback Exhaust Black Chrome Tip
$1499.99
Gibson
Gibson 11-19 Chevrolet Silverado 2500 HD LT 6.0L 3.5in Cat-Back Single Exhaust - Aluminized
$623.21
Gibson
Gibson 11-19 Chevrolet Silverado 2500 HD LT 6.0L 3.5in/3in Cat-Back Dual Split Exhaust - Aluminized
$800.12
Headers
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BD Diesel
BD Diesel Exhaust Manifold Kit - 02-13 Chevy Silverado 1500 & GMC Sierra 1500 V8
$626.83
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
JBA
JBA 02-13 GM Truck 4.8L/5.3L LS Raw 409 Cat4Ward Header
$720.88
JBA
JBA 02-13 GM Truck 4.8L/5.3L LS Silver Ctd Cat4Ward Header
$896.62
Victor Reinz
MAHLE Original Buick Allure 09-08 Exhaust Manifold Set
$20.19
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
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aFe
aFe ATLAS 4in DPF-Back Alum Steel Exhaust System w/Dual Exit Black Tip 2017 GM Duramax 6.6L (td)
$871.00
aFe
aFe ATLAS 4in DPF-Back Alum Steel Exhaust System w/Dual Exit Polished Tip 2017 GM Duramax 6.6L (td)
$808.00
aFe
aFe ATLAS 5in DPF-Back Aluminized Steel Exhaust System GM Diesel Trucks 2017 V8 6.6L (td) L5P
$660.00
aFe
aFe ATLAS 5in DPF-Back Aluminized Steel Exhaust System w/Polished Tips 2017 GM Duramax 6.6L (td) L5P
$593.00
aFe
aFe LARGE BORE HD 5in 409-SS DPF-Back Exhaust w/Black Tip 2017 GM Duramax V8-6.6L (td) L5P
$619.00
aFe
aFe LARGE BORE HD 5in 409-SS DPF-Back Exhaust w/Polished Tip 2017 GM Duramax V8-6.6L (td) L5P
$568.00
aFe
aFe LARGE BORE-HD 4in 409-SS DPF-Back Exhaust w/Dual Black Tips 2017 GM Duramax V8-6.6L (td) L5P
$911.00
aFe
aFe Large Bore-HD 4in 409-SS DPF-Back Exhaust w/Dual Polished Tips 2017 GM Duramax V8-6.6L (td) L5P
$808.00
Exhaust Upgrade for Other GMC Sierra 3500 HD Years
Other Jobs for Your 2018 GMC Sierra 3500 HD
Frequently Asked Questions
What parts do I need for a exhaust upgrade on my 2018 GMC Sierra 3500 HD?
A complete exhaust upgrade on the 2018 GMC Sierra 3500 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 2018 GMC Sierra 3500 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 2018 GMC Sierra 3500 HD?
These parts are listed for the 2018 GMC Sierra 3500 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 2018 GMC Sierra 3500 HD?
We carry exhaust upgrade parts from trusted brands including Banks Power, Borla, Gibson, BD Diesel, and Fel-Pro. Filter by brand to find your preferred manufacturer.
How much does a exhaust upgrade cost for a 2018 GMC Sierra 3500 HD?
The cost of a exhaust upgrade for the 2018 GMC Sierra 3500 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.