GReddy is proud to announce the Revolution RS line of exhaust systems. Named for the revolutionary approach to the design and construction of each application, this racing-sport line focuses on performance with an aggressive look and sound. Careful attention to the flow of exhaust layouts and the internal straight-through construction of each muffler and resonator sets this system apart from similar-looking imitators. Updated ultra high-temperature resistant, sound suppression materials of various densities and high-quality TIG-welded 304 stainless-steel provide premium quality at an affordable price.  The Revolution RS is covered by a limited lifetime warranty.

The Revolution RS for the GDB Subaru WRX/STI  features a full non-tapered 76mm (3”) diameter piping. The focused layout of the cat-back exhaust uses minimal bends to produces a cost-effective, light-weight system that saves 8lbs over the stock system. Traditional GReddy RS styling positions a large resonator and the muffler and tip fashionably underneath the vehicle, while enhancing the profile body-lines perfectly. Dyno test have shown increase in 8hp and 6ft-lbs of torque on a completely stock vehicle, with the potential for additional gains with other aftermarket modifications and/or tuning. Like all GReddy Revolution RS systems, the exhaust is made from fully hand-welded 304 Stainless-Steel and carries a Limited Lifetime Warranty.

Chassis:  GDB
Engine:  EJ20 / EJ25
Type:   Cat-back system

Number of pieces: 2pcs
Piping:    76 mm ( 3.0 in.)
Tip:   115 mm (4.5 “) x L 170mm (6.7”)
Gasket(s):    3.0″ oval (qty: 1 included) replacement
Resonator:   Yes
Weight:  24.2 lbs   (Stock weight  32.1 lbs)
Sound level:  102 dB(a)

HP:  +8.33  hp
TRQ:  +6.38  ft-lbs