MagnaFlow has a variety of 2003 Toyota 4Runner catalytic converters that meet HM Grade or OEM Grade requirements. Make sure your 4Runner stays roadworthy and keep the check engine light off with these replacement catalytic converters. Each converter features durable stainless-steel construction and utilizes either a direct-fit or universal design compatible with Limited to Sport trim levels equipped with engine options ranging from the 4.0L V6 to the 4.7L V8. Select your ’03 Toyota 4Runner’s specifications and state vehicle registration to ensure you buy the correct catalytic converter that fits your SUV’s needs and meets your state’s emissions compliance regulations.

Need a 2003 Toyota 4Runner replacement exhaust system? Shop all BRExhaust 2003 Toyota 4Runner Direct-Fit Replacement Exhaust Systems to find the best aftermarket kit to replace your 2003 Toyota 4Runner OEM exhaust.

MagnaFlow offers complete performance exhaust systems for your 2003 Toyota 4Runner. Determine the power and sound you demand for your 2003 4Runner and shop all available exhaust systems online. Select your '03 Toyota 4Runner sub-model and engine details to buy the best exhaust system that fits your needs.