The Lexus IS250 just got a serious performance upgrade with an Injen intake and a custom DYNO tune. This combination takes your driving experience to the next level, delivering sharper throttle response, more power, and an aggressive exhaust note—all while keeping your car street-legal and reliable. Injen Intake Upgrade Installing the Injen intake improves airflow to the engine, allowing it to breathe easier. The result is faster turbo spool (if turbocharged) or improved natu