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Greddy Supreme SP Exhaust: Subaru (GRB) STI Hatchback

$445.25 $995.00

10168200
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10168200

The Supreme SP Exhaust for the Subaru STI hatchback features a large horizontally mounted, 3-section muffler with a center inlet. 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.

Make: Subaru
Model
(GRB) WRX STI
Years: 2009-14

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 hardware for mid-pipe

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

Dyno Chart
HP
:  +20  hp
TRQ:  +6 ft-lbs

10168200