GReddy SUPREME SP HONDA CIVIC SI COUPE 2017-20 - () 10158216
GReddy SUPREME SP HONDA CIVIC SI COUPE 2017-20 - () 10158216
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In-stock orders are processed within 48 hours; transit time is additional.
International orders include export processing and customs clearance. Duties, taxes and brokerage are extra; final freight charges may change after remeasurement.
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Need help with a return? Request authorization within 30 days of delivery for eligible unused, uninstalled items. See details for exclusions and applicable fees.
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Request return authorization (RMA) within 30 days of delivery for eligible items. Keep items unused and uninstalled, with original packaging and accessories. Electronics, liquids, special orders and other categories are excluded.
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For defective items, contact us for help with the manufacturer's warranty process. The manufacturer decides the claim.
Specifications
Product details shared across all variants.
- Product type
- Exhaust System Kit
- Category
- Motor Vehicle Exhaust
- Item condition
- New
- Manufacturer type
- Aftermarket
- Shipping dimensions (L × W × H)
- Shipping weight
- 145.0 lb
Billable shipping weight; may include dimensional weight.

2017-on 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.)
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
*Data collected on stock vehicle *Retains catalytic convertor, front pipe
*TBA = To Be Announced
