GReddy 12401114 Universal Type (I O/C Block Assembly 3/4X16Unf) Exhaust systems have always been the base for aftermarket performance 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