The Invidia Q300 Catback Exhaust for the 2006-2012 Lexus IS250/IS350 Sedan is designed for performance and an excellent tuner look and a smooth sporty exhaust note. This exhaust features CNC mandrel-bent T304 stainless steel construction and large exhaust tips. The exhaust utilizes 70mm primary piping to 60mm mufflers with dual 110mm rolled titanium exhaust tips. The Q300 muffler is designed with a special shape to enhance high speed aerodynamics and features Advantex material and tuned backpressure to maximize horsepower and torque. Upgrade your IS250/IS350 Sedan to a Q300 exhaust to maximize performance and for years of durable performance.