GReddy Supreme SP Exhaust (11-14 STI/WRX - Sedan)

The Supreme SP for the Subaru STI Sedan features much larger diameter piping, resonators and mufflers, but also smooths 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 a Limited Lifetime Warranty.

Dyno Chart

**Special Order**