MagnaFlow has a variety of 2012 GMC Sierra 1500 catalytic converters that meet OEM Grade requirements. Maintain your full-sized pickup’s emissions system and keep your truck road legal. Each converter features durable stainless-steel construction and utilizes either a direct-fit or universal design compatible Denali to XFE trim levels equipped with engines ranging from the 4.3L gas V6 to the 6.2L FLEX V8. Select your ‘12 GMC Sierra 1500’s specifications and state vehicle registration to ensure you buy the correct catalytic converter that fits your truck’s needs and meets your state’s emissions compliance regulations.

Need a 2012 GMC Sierra 1500 replacement exhaust system? Shop all BRExhaust 2012 GMC Sierra 1500 Direct-Fit Replacement Exhaust Systems to find the best aftermarket kit to replace your 2012 GMC Sierra 1500 OEM exhaust.

MagnaFlow offers 2012 GMC Sierra 1500 exhaust systems from the Street Series and Off-Road Pro Series product lines. Each truck exhaust kit features a black-coated, polished or satin tip finish. These exhaust systems are compatible with Denali, SL, SLE, SLT, WT and XFE trim levels equipped with the 6.2L FLEX V8, 4.8L FLEX V8, 5.3L FLEX V8 and 4.3L gas V6 engine variants. Select your '12 Sierra 1500's sub-model, engine size and vehicle details to shop all available exhaust systems for your truck.