Honda Civic Si Spoiler Extension (Kouki FG4, 2014-2015)
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Epsilon+ Aerodynamics

Honda Civic Si Spoiler Extension (Kouki FG4, 2014-2015)

This rear spoiler extension for the 9th gen FG4 Civic Si Coupe (Kouki) is available in ACM and CF. It attaches securely with screws and includes CNC machined aluminum supports and all necessary hardware.

USD 220.0

  • Our rear spoiler extension for the 9th generation FG4 Civic Si Coupe (Kouki) available in ACM and CF.
  • This is designed for the newer facelift (Kouki) Civic with an Si spoiler, so if you have a non-Si with an Si spoiler, this will work.
  • “Gurney Flap” style add-on: Our simple design works with your OEM spoiler to provide downforce and stability at speed.
  • Mounted with screws for durability: The extension solidly threads in to your spoiler at 4 points, with extra tape to protect your paint.
  • Secure Checkout
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Full details

Our rear spoiler extension for the 9th generation FG4 Civic Si Coupe (Kouki) available in ACM and CF. This is designed for the newer facelift (Kouki) Civic with an Si spoiler, so if you have a non-Si with an Si spoiler, this will work. “Gurney Flap” style add-on: Our simple design works with your OEM spoiler to provide downforce and stability at speed. Mounted with screws for durability: The extension solidly threads in to your spoiler at 4 points, with extra tape to protect your paint. No more peeling 3M tape after a few seasons! CNC machined aluminum supports: Four 6061 aluminum supports ke

Quick answer: Honda Civic Si Spoiler Extension (Kouki FG4, 2014-2015) Epsilon+ Aerodynamics Honda Civic Si Spoiler Extension (Kouki FG4, 2014-2015) This rear spoiler extension for the 9th gen FG4 Civic Si Coupe (Kouki) is available in ACM and CF. It attaches securely with screws and includes CNC machined aluminum supports and all necessary hardware. USD 220.0 Our rear spoiler extension for the…

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