2015-2016 Subaru WRX/STi Sedan Greddy Supreme SP Cat-Back Exhaust System

The Supreme SP for 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 a Limited 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" oThe Supreme SP for the (VA) Subaru Sedan features large dual oval mufflers and quad staggered tips in a "tucked-away" layout, for maxium muffler ground clearance. Large 76mm (3”) piping is carefully routed around the rear differential to a centralized Y-section for more even flow. This creates and improved performance with exceptional sound for both the EJ powered STI and FA powered WRX applications. The system is finished off with classic quad Supreme SP 89mm laser engraved GReddy tips. Like all GReddy Supreme SP systems the fully hand-welded 304 Stainless-Steel exhaust carries a Limited Lifetime Warranty.

Chassis: VA2 / VA1
Engine: EJ257 / FA20T
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: Noval (qty: 3 included) replacement(s)
Resonator: Yes
Weight: TBA lbs 
Sound level: L89 & R91 dB(a) @4000
Notes: reuse factory doughnut-gasket and hardward for mid-pipe
HP: +14 hp
TRQ: +22 ft-lbs