MagnaFlow has a variety of 2004 Subaru Impreza catalytic converters that meet California Grade, HM Grade or OEM Grade requirements. Keep your Impreza on the road and make sure the check engine light stays off with these replacement catalytic converters. Each converter features durable stainless-steel construction and utilizes either a direct-fit or universal design compatible with Outback to WRX STI trim levels equipped with engine options ranging from the 2.0L to 2.5L flat-four engine options. Select your ’04 Subaru Impreza’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 2004 Subaru Impreza replacement exhaust system? Shop all BRExhaust 2004 Subaru Impreza Direct-Fit Replacement Exhaust Systems to find the best aftermarket kit to replace your 2004 Subaru Impreza OEM exhaust.

MagnaFlow offers complete performance exhaust systems for your 2004 Subaru Impreza. Determine the power and sound you demand for your 2004 Impreza and shop all available exhaust systems online. Select your '04 Subaru Impreza sub-model and engine details to buy the best exhaust system that fits your needs.