GReddy 2017-2021 Honda Civic SI Coupe Supreme SP Catback Exhaust

2017-21 Honda Civic Si Coupe (only)

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, cat-back exhaust connects to the factory piping (our system bolts to the factory exhaust system at the flange behind the engine/transmission) and expands to large 3” (76mm) forward-midpipe 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.

Chassis:  FC3 coupe
Engine:  L15  Turbo
Type:   3" Cat-back with dual oval muffler with dual tips

Number of pieces: 3
Piping:   76 mm (3 ")
Tips:   2x 115 mm (4.5 ")
Gasket(s):    3 " oval (qty: 2 included) replacement
Resonator:   Yes