GReddy 11-14 Subaru STI Sedan Supreme SP Exhaust

10168201

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.

Make: Subaru
Model (GV8) WRX STI sedan
Years: 2011-14

 Sound Clip

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

Weight: TBA  lbs  
Sound level:  L89 & R91 dB(a) @4000

Notes: reuse factory doughnut-gasket and hardware for mid-pipe

Dyno Chart
HP:  +14 hp
TRQ:  +22 ft-lbs