Upgrade to Long Tube headers on your 2020-21 Chevy Silverado or GMC Sierra HD with this system from Stainless Works. Unleash that 6.6L motor with 1-7/8" primaries that flow into a 3" collector with an integrated merge spike. This system comes with high flow cats and a Y-pipe for a simple bolt-on install.
This Part Fits:
Year
Make
Model
Submodel
2020-2022
Chevrolet
Silverado 2500 HD
Custom
2020-2022
Chevrolet
Silverado 2500 HD
High Country
2020-2022
Chevrolet
Silverado 2500 HD
LT
2020-2022
Chevrolet
Silverado 2500 HD
LTZ
2020-2022
Chevrolet
Silverado 2500 HD
WT
2020-2022
Chevrolet
Silverado 3500 HD
High Country
2020-2022
Chevrolet
Silverado 3500 HD
LT
2020-2022
Chevrolet
Silverado 3500 HD
LTZ
2020-2022
Chevrolet
Silverado 3500 HD
WT
2020-2022
GMC
Sierra 2500 HD
AT4
2020-2021
GMC
Sierra 2500 HD
Base
2020-2022
GMC
Sierra 2500 HD
Denali
2022
GMC
Sierra 2500 HD
Pro
2020-2022
GMC
Sierra 2500 HD
SLE
2020-2022
GMC
Sierra 2500 HD
SLT
2020-2022
GMC
Sierra 3500 HD
AT4
2020-2021
GMC
Sierra 3500 HD
Base
2020-2022
GMC
Sierra 3500 HD
Denali
2022
GMC
Sierra 3500 HD
Pro
2020-2022
GMC
Sierra 3500 HD
SLE
2020-2022
GMC
Sierra 3500 HD
SLT
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