GReddy Supreme - SP

The 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.

SOUND CLIP

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:   No

Weight:  TBA lbs   (Stock weight  TBA lbs)
Sound level:  TBA dB(a)

HP:  +TBA  hp
TRQ:  +TBA  ft-lbs

*Data collected on stock vehicle    *Retains catalytic convertor, front pipe    
*TBA = To Be Announced

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.

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 hardward for mid-pipe

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

*Data collected on stock vehicle    *Retains catalytic convertor, front pipe    
*TBA = To Be Announced

The Supreme SP for the Subaru STI hatchback features a large horizontally mounted, 3-section muffler with a "tucked-away" layout. This routing allows for the large 3” diameter piping to more smoothly enter the muffler’s center section. Exhaust gases exit each side of the revised muffler via the two 2.5” diameter piping to quad staggered 3.5” GReddy double-wall slash cut tips, The non-tapered 3” mid-pipe also encases a large resonator section to tune-out drone. Like all GReddy Supreme SP systems the fully hand-welded 304 Stainless-Steel exhaust carries a Limited Lifetime Warranty.

SOUND CLIP

Chassis:  GRB
Engine:  EJ25
Type:  cat-back system
  (horizontally mounted muffler with dual outlets)

Number of pieces:  3
Piping:   76 mm (3") - 2x 63.5mm (2.5")
Tip(s):  4x 89mm (3.5 ")
Gasket(s):  3" oval (qty: 2 included) replacement
Resonator:   Yes

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

Weight:  39.8lbs  (-2.8lbs)
Sound level:  L82 / R83 dB(a) @4000

Dyno Chart
HP:  +TBA  hp
TRQ:  +TBA  ft-lbs

*Data collected on stock vehicle    *Retains catalytic convertor, front pipe    
*TBA = To Be Announced