Exhaust systems have always been the base for aftermarket performance. From the beginner starting off to the high horsepower racer, who need to comply to track sound requirements, a well engineered exhaust system will enhance performance, sound, appearances, and economy. Upgrading restrictive factory exhaust with a tuned straight-through GReddy and GPP Exhaust System will increase horsepower & torque, add a deep sporty exhaust note, give style & flare to the look of your car, all while increasing fuel efficiency.