Collection: 2020-2026 GMC Sierra 2500HD Exhausts

These exhaust systems fit 2020-2026 GMC Sierra 2500HD trucks with the 6.6L L8T gas V8 and the 6.6L Duramax L5P diesel. Cat-back, DPF-back, and axle-back kits from MBRP, Flowmaster, Magnaflow, and AFE in 4-inch and 5-inch stainless with single and dual outlet configurations.

Will an aftermarket exhaust trigger a check engine light or fail emissions? No, every cat-back and DPF-back system here keeps the factory catalytic converter and DPF intact, so emissions equipment stays compliant and no CEL is thrown.

Verified fitment on every listing, no guesswork at checkout.