Need a replacement catalytic converter for your 2017 GMC Sierra 2500 HD? MagnaFlow offers high-quality, OEM-Grade catalytic converters engineered for various 2017 Sierra 2500 HD sub-models and engine sizes, designed to keep the check engine light off. We combine efficient design and state-of-the-art manufacturing to meet or exceed required emissions standards. To find the correct catalytic converter, select your 2017 GMC Sierra 2500 HD sub-model and engine size, along with your state vehicle registration. This will ensure you purchase a converter that fits your vehicle and meets your state's emissions regulations.

Need a 2017 GMC Sierra 2500 HD replacement exhaust system? Shop all BRExhaust 2017 GMC Sierra 2500 HD Direct-Fit Replacement Exhaust Systems to find the best aftermarket kit to replace your 2017 GMC Sierra 2500 HD OEM exhaust.

MagnaFlow offers a variety of cat-back and particulate filter-back 2017 GMC Sierra 2500 HD exhaust systems from the Street Series, Aluminized Pro Series, Black DPF Series and MagnaFlow Pro DPF Series product lines. These systems are compatible with Base, Denali, SLE and SLT trim levels equipped with the 6.0L FLEX V8 or 6.6L diesel V8. Each of these truck exhaust kits are made of aluminized steel or stainless steel and feature either black coated or polished tip finishes. Select your '17 Sierra 2500 HD's sub-model, engine size and vehicle details to shop all available exhaust systems for your truck.