GReddy 2017+ Honda Civic SI Coupe Supreme SP Exhaust
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By incorporating our unique SP (Street Performance) ideas into the design, the Supreme SP cat-back exhaust improves performance, sound quality, and appearance for the turbocharged 10th generation Honda Civic Si Coupe.
With the free flowing, compact oval SP mufflers, the system not only incorporates huge 76mm (3") pipework, but it also smooths out and streamlines the heavier factory muffler configuration. This enables the engine to be more efficient, resulting in increased performance without drone or noise. The sound level of the Supreme SP has been carefully calibrated so that no extra resonators are required; this also helps lighten the system.
To complement the Civic Si's dynamic rear diffuser, the polished stainless-steel center-exit exhaust features attractive dual, double-wall, slant cut GReddy tips. GReddy Supreme is the same way.
- Honda Civic Si Coupe (2017-2021)
- 304 stainless steel, fully hand-welded.
- Piping with a diameter of 76mm (3")
- Dual SP Mufflers with a Free Flowing, Compact Design.
- Without the drone, performance and sound are improved.
- No additional resonators are required due to careful tuning.
- Stylish Dual, Double-Wall, Slant-Cut Tips complete the look.
In stock, non special order items can be returned within 30 days of the product arriving to your house or place of work.
Returns will NOT be accepted on final sales, special orders, opened, installed, incomplete, or otherwise used products. In order to initiate a return, an RMA number must be requested and approved via e-mail.
All returns will be subject to a 20% restocking fee minus complete shipping cost (roundtrip).
Any processed orders that have not shipped will incur a 6% cancelation refund fee unless the product was not available to ship within a timely manner. No fee will be incurred if used as store credit.
For complete details on our return policy, please see our Help and FAQ link under HELPFUL INFO.