Need a 2023 GMC Sierra 3500 HD replacement exhaust system? Shop all BRExhaust 2023 GMC Sierra 3500 HD Direct-Fit Replacement Exhaust Systems to find the best aftermarket kit to replace your 2023 GMC Sierra 3500 HD OEM exhaust.

MagnaFlow offers a wide range of complete exhaust systems for your GMC Sierra 3500 HD that is engineered to take the sound and performance of your rig to the next level. These exhaust kits have been road and dyno-tested to ensure that they live up to MagnaFlow’s reputation for developing the best-sounding and highest-performing exhaust for any vehicle application. Kits from our Street Series, MagnaFlow PRO DPF Series, and Black DPF Series are available. Our 2023 GMC Sierra 3500 HD exhaust systems include options compatible with Pro, SLE, SLT, AT4, and Denali trim levels running either the 6.6L gas or diesel V8 engine options. Enter your ’23 Sierra 3500 HD’s sub-model and engine details using our Shop by Vehicle tool to find the optimal exhaust for your truck.