MagnaFlow has a variety of 2003 Chevrolet Impala catalytic converters that meet California Grade, HM Grade or OEM Grade requirements. These legally required exhaust components will ensure that your Impala can keep rolling down the road in style. Each converter features durable stainless-steel construction and utilizes either a direct-fit or universal design compatible with Base to Police trim levels equipped with the 3.6L or 3.8L V6 engines. Select your ‘03 Chevy Impala’s specifications and state vehicle registration to ensure you buy the correct catalytic converter that fits your car’s needs and meets your state’s emissions compliance regulations.

Need a 2003 Chevrolet Impala replacement exhaust system? Shop all BRExhaust 2003 Chevrolet Impala Direct-Fit Replacement Exhaust Systems to find the best aftermarket kit to replace your 2003 Chevrolet Impala OEM exhaust.

MagnaFlow offers complete performance exhaust systems for your 2003 Chevrolet Impala. Determine the power and sound you demand for your 2003 Impala and shop all available exhaust systems online. Select your '03 Chevrolet Impala sub-model and engine details to buy the best exhaust system that fits your needs.