TheSupreme SPfor the Subaru STI Sedan features much larger diameter piping, resonators and mufflers, but also smoothes the layout for maximum performance with good sound suppression. This cat-back exhaust starts out with a full 3” mid-pipe with a large straight-through resonator to tune out drone. The next section smoothly transitions into dual 2.5” diameter piping. Improved dual GReddy straight-through mufflers with dual, double wall tips on each muffler finish off the exhaust. GReddy designers carefully position the dual mufflers and staged tips to flow with the GV-chassis’ bodylines. Like all GReddy Supreme SP systems the fully hand-welded 304 Stainless-Steel exhaust carries aLimited Lifetime Warranty.
Vehicle(s): WRX & STI Sedan Chassis: GV8 Engine: EJ257 Type: cat-back, dual muffler system
Number of pieces: 4 Piping: 76 mm (3") - 2x 63.5mm (2.5") Tip(s): 4x 89 mm (3.5") Gasket(s): 2x 2.5" & 1x 3" oval (qty: 3 included) replacement(s) Resonator: Yes