This Spintech side exit exhaust is the ultimate way to make your GTO look hot and sound great! Start by increasing the tubing diameter from the factory 1 ¾” to a mandrel bent 2 ½” tubing, then add Spintech's famous mufflers, and you have one awesome system. This design sounds incredible when mashing the accelerator but provides a mellow tone while cruising with almost no interior resonance. This system is features DSV tips, which are a dual split oval tip, set-up that has two tips on each side.