At AutoAccessoriesGarage.com we carry Lexus IS300 catalytic converters that maximize your vehicle's performance and horsepower. IS300 catalytic converters curtail pollutant output without cutting off your exhaust aerodynamics. Car cat converters are custom-made to your precise Lexus IS300, ensuring a factory replacement fit. You can pick from a broad assortment of Lexus high flow cats at excellent prices when you stick with Auto Accessories Garage.