2021 GMC Sierra 1500 Exhaust Upgrade Parts
142 parts verified to fit your 2021 GMC Sierra 1500 for a complete exhaust upgrade. A moderate DIY project — estimated 2-5 hours.
Cat-Back Exhaust
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Gibson
Gibson 19-24 GMC Sierra 1500 Denali 6.2L 3in/2.5in Cat-Back Dual Split Exhaust - Stainless
$691.46
aFe
aFe Vulcan Series 3-2.5in 304SS Exh Cat-Back w/ Pol Tips 2019 GM Silverado/Sierra 1500 L4-2.7L (t)
$1394.00
Borla
Borla 2019 Chevrolet Silverado 1500 6.2 w/ 147in WB 2.75in S-Type Catback Exhaust - Quad Square Tips
$2097.99
aFe
aFe Vulcan Series 4-3in 304SS Exhaust Cat-Back w/ Pol Tips 2019 GM Silverado/Sierra 1500 V8-6.2L
$1684.00
AWE Tuning
AWE Tuning 4th Gen GM 1500 5.3L 0FG Catback Dual Side Exit (Flat Bumper) - Chrome Tips
$1248.00
Gibson
Gibson 19-22 GMC Sierra 1500 Denali 5.3L 3in/2.5in Cat-Back Dual Extreme Exhaust - Stainless
$830.68
Magnaflow
MagnaFlow 2019 Chevy Silverado 1500 V8 5.3L Street Series Quad Split Rear Exhaust w/ Black Tips
$2225.56
Magnaflow
MagnaFlow 2019 Chevrolet Silverado 1500 Quad Exit Polished Stainless Cat-Back Exhaust
$1966.77
Headers
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Fel-Pro
Fel-Pro Chevrolet Silverado 1500 MS 97531 Exhaust Manifold Gasket Set
$23.71
Fel-Pro
Fel-Pro Chevrolet Silverado 1500 Exhaust Manifold Gasket Set
$27.76
JBA
JBA 19-20 GM Truck 5.3/6.2L DFI 1-3/4in Primary Raw 409 Cat4Ward Header
$709.39
JBA
JBA 19-20 GM Truck 5.3/6.2L DFI 1-3/4in Primary Raw 409 Cat4Ward Header
$912.51
BBK
BBK 19-24 GM Full Size 5.3/6.2L Shorty Headers (Silver Ceramic)
$629.75
Victor Reinz
MAHLE Original 14-15 GM 5.3L Vin C Exhaust Manifold Set
$26.56
BBK
BBK 19-24 GM Full Size 5.3/6.2L Shorty Headers (Ti Ceramic)
$598.26
aFe
aFe Twisted Steel 1-3/4in 304SS Shorty Headers 2019 GM Silverado / Sierra 1500 V8-5.3L/6.2L
$1223.85
Mufflers
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Magnaflow
MagnaFlow D-Fit Muffler 409 SS 3.5in 2019 Chevrolet Silverado 1500 6.2L w/o Muffler
$216.88
Magnaflow
MagnaFlow D-Fit Muffler Replacement 409 SS 3.5in 19-21 GMC Sierra 1500
$775.31
Magnaflow
Magnaflow 19-20 GMC Sierra 1500 Single Underbody 4.3L/5.3L Direct Fit Catalytic Converter
$973.00
aFe
aFe Vulcan Series 3in 304SS DPF-Back 20-21 GM Trucks L6-3.0L (td) LM2 - Dual Black Tip
$1532.00
Borla
Borla 19-20 Chevrolet Silverado 1500 / GMC Sierra 1500 6.2L V8 WB Adapter
$84.99
Kooks Headers
Kooks 2019+ GM 1500 Series Truck 6.2L 3in x OEM Outlet Catted SS Y Pipe Kooks HDR Req
$2458.78
Borla
Borla 19-20 GM Silverado/Sierra 1500 Crew Cab STD Bed 5.3L Wheelbase Adapter Pipe
$74.99
Fel-Pro
Fel-Pro 14-21 Chevrolet Silverado 1500/18-22 Suburban/18-22 Tahoe Exhaust Pipe Flange Gasket
$5.99
Exhaust Upgrade for Other GMC Sierra 1500 Years
Other Jobs for Your 2021 GMC Sierra 1500
Frequently Asked Questions
What parts do I need for a exhaust upgrade on my 2021 GMC Sierra 1500?
A complete exhaust upgrade on the 2021 GMC Sierra 1500 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 GMC Sierra 1500?
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 GMC Sierra 1500?
Yes, all parts on this page are verified to fit the 2021 GMC Sierra 1500 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 GMC Sierra 1500?
We carry exhaust upgrade parts from trusted brands including Gibson, aFe, Borla, AWE Tuning, and Magnaflow. Filter by brand to find your preferred manufacturer.
How much does a exhaust upgrade cost for a 2021 GMC Sierra 1500?
The cost of a exhaust upgrade for the 2021 GMC Sierra 1500 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.