GReddy 2017+ Honda Civic SI Coupe Supreme SP Exhaust

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The unique dual muffler Supreme SP for the 10th generation Honda (FC3) Civic Si coupe features high-flow with a refined exhaust note. Under wide-open-throttle, spirited driving, the system offers the classic GReddy deep exhaust growl. To enhance the performance of the turbocharged 1.5L engine, this 3piece, full cat-back exhaust connects to the factory downpipe and expands to large 3” (76mm) front-pipe and mid-pipe that split to two polished, straight-through SP oval mufflers and dual center-exit dual-wall GReddy tips. This tip and muffler combination is a great compliment to the Si’s sporty, but wide rear bumper tip opening. (We also offer a similar, application-specific system for the (FC1) Civic Si sedan.)  Like all GReddy Supreme SP systems, the fully hand-welded 304 Stainless-Steel exhausts carry a Limited Lifetime Warranty.

Make: Honda
Model Civic Si (Turbo) Coupe
Years: 2017-

  Sound Clip

Chassis: FC3 coupe 
Engine: Turbocharged L15B
Type: large diameter Cat-back exhaust

Number of pieces: 3pcs
Piping: 76 mm (3.0 ")
Tips: 2x 105 mm (4.1 ")
Gasket(s): 3.0 " oval (qty: 2 included) replacement
Resonator: Yes