MagnaFlow has a variety of 2004 Mazda 6 catalytic converters that meet California Grade, HM Grade or OEM Grade requirements. Ensure that your sedan is emissions compliant and keep the check engine light off with these high flow replacement converters. Each converter features durable stainless-steel construction and utilizes either a direct-fit or universal design compatible with S to i trim levels equipped with the 2.3L inline-four or 3.0L V6 engine options. Select your ’04 Mazda 6’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 Mazda 6 replacement exhaust system? Shop all BRExhaust 2004 Mazda 6 Direct-Fit Replacement Exhaust Systems to find the best aftermarket kit to replace your 2004 Mazda 6 OEM exhaust.

MagnaFlow offers complete performance exhaust systems for your 2004 Mazda 6. Determine the power and sound you demand for your 2004 6 and shop all available exhaust systems online. Select your '04 Mazda 6 sub-model and engine details to buy the best exhaust system that fits your needs.