The IS has the longest uninterrupted surface of anything in its class, and from the factory the rocker below the doors is flat painted plastic that reads as dead space between the wheels.
A Feral Auto design, not a copy of any Lexus part, built from 3K premium carbon fiber and shaped to sit tight against the factory rocker so the car reads lower without looking like something was bolted on. Sold as a matched pair, driver and passenger side.
Pairs with the Carbon Fiber Roof Spoiler, which fits the same year range, and with the 2026+ Carbon Fiber Front Spoiler. All four carbon pieces come together in the Carbon Aero Bundle Kit. The same skirts in FRP cost less and ship primed for paint.
Why Carbon Fiber
Carbon fiber earns its place over factory plastic on three counts. It holds a crisp edge where plastic softens and rounds off. It resists the flex and sag that makes a long lower part look tired after a season. And the weave is the finish itself rather than a coating applied over it, so a scuff doesn't expose a different color underneath.
Side skirts are the longest single part you can change on this car. A wave or a sag anywhere along that run reads from fifty feet away, which is why rigidity is the entire job here.
Available Carbon Finishes
- Gloss (Standard) — our standard high-gloss 2x2 twill weave
- Matte Carbon — same weave, low-sheen matte finish
- Honey Comb Carbon — hexagonal honeycomb-pattern weave
- Forged Carbon — marbled, high-strength forged carbon pattern
Please note: Matte, Honey Comb, and Forged Carbon finishes are non-refundable once production has started.
Current Lead Time
Current estimated lead time is approximately 25-35 business days from order to ship.
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