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The JDM CS aero treatment for the 2018-2021 Subaru WRX — genuine carbon fiber front lip splitter and matching side skirts, clear-coated against UV and shaped to the factory body lines for a direct bolt-on fit.
Genuine Carbon Fiber · Lip + Side Skirts · Bolt-On Install

The CS-style front lip pulls the WRX’s chin down into a proper splitter profile, and the matching side skirts carry that edge along the rockers. Both pieces are genuine carbon fiber — exposed weave under a UV-resistant clear coat — giving you the motorsport look with an exceptional strength-to-weight ratio and a finish built to hold up in the sun.
This is a bolt-on kit in the truest sense. Pre-drilled mounting holes align with the factory mounting points, every fastener arrives in the box with an installation guide, and there is no cutting or drilling involved. Each piece is fitment-tested against the factory body lines, so the kit reads factory-equipped rather than tacked-on — and the splitter profile generates front-end downforce for improved stability at speed.
Authentic carbon construction with a UV-resistant clear coat that keeps the weave’s depth from fading.
The engineered front lip profile generates front-end downforce for improved stability at speed.
Shaped to match the WRX’s factory body lines for a seamless, factory-equipped appearance.
Pre-drilled mounting holes align with factory mounting points — no cutting, no drilling, no mods.
Every mounting fastener plus an installation guide comes in the box.
Each piece goes through rigorous fitment testing for OEM-level quality and precise alignment.






| Specification | |
|---|---|
| Part Number | FLIP-179-BKCF_SS-289-BKCF |
| Manufacturer | Extreme Online Store |
| Material | Carbon Fiber |
| Finish | Carbon Fiber Weave with UV-resistant clear coat |
| Kit Contents | Front lip splitter and side skirts |
| Installation | Bolt-On / Direct Fit |
| Modification Required | None |
| Fitment | 2018-2021 Subaru WRX (Base, Premium, Limited, STI) |
Function Factory Performance prices it at the source — no markup. Free ground shipping in the contiguous US. Questions on fitment or finish? Call, text, or chat from any FFP page — 805-267-9762, Thousand Oaks, CA.
You'll get an instant confirmation email with your part details and invoice. Orders ship from our Thousand Oaks shop or direct from the manufacturer's warehouse — whichever gets it to your door faster — so lead times vary by brand and part type. We'll send a tracking number the moment your parts move.
Made-to-order builds — carbon fiber bodywork, fabricated systems, custom finish work — run longer than off-the-shelf items because they're built per order. You'll get progress updates throughout the build.
Need a specific timeline on a part before you buy? Call 805-267-9762 or hit the chat — we'll confirm current availability and give you a straight answer.
Absolutely! Once your order ships, you'll get an email with a tracking link so you can follow its journey from our shop to your doorstep.
If your order ships via freight, you'll get a separate email with a direct link to the carrier's tracking page — easy and stress-free.
Things happen on the road — even to boxes. If your order arrives damaged, snap a few clear photos of the box and product and send them our way right away.
If your shipment is lost, just email or call us — we'll help track it down and guide you through the next steps to make it right.
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