Collection: 2015-2019 GMC Sierra 3500HD AxleBack Exhausts

These axle-back exhaust systems fit 2015-2019 GMC Sierra 3500HD trucks with the 6.0L gas V8. Options from MBRP, Flowmaster, MagnaFlow, and Borla cover single and dual-outlet configurations in 409 stainless or T-304 stainless, with polished or black tips.

Will an axle-back trigger a check engine light or affect emissions? No. Axle-back systems replace only the muffler and tailpipe behind the rear axle, leaving your catalytic converters and O2 sensors untouched, so emissions and factory tuning stay intact.

Every system listed here is verified to bolt on -- no guesswork.