Need a replacement catalytic converter for your 2004 Lexus IS300? MagnaFlow offers high-quality catalytic converters engineered for 2004 Lexus IS300 sub-models and engine sizes. We combine efficient design and state-of-the-art manufacturing to meet or exceed required emissions standards. Select your 2004 Lexus IS300 requirements and state vehicle registration to buy the best IS300 catalytic converter online that fits your '04 IS300 and meets your state’s emissions compliance.

Need a 2004 Lexus IS300 replacement exhaust system? Shop all BRExhaust 2004 Lexus IS300 Direct-Fit Replacement Exhaust Systems to find the best aftermarket kit to replace your 2004 Lexus IS300 OEM exhaust.

MagnaFlow offers complete performance exhaust systems for your 2004 Lexus IS300. Determine the power and sound you demand for your 2004 IS300 and shop all available exhaust systems online. Select your '04 Lexus IS300 sub-model and engine details to buy the best exhaust system that fits your needs.