The IS has one of the better rooflines in the segment, and the top of the rear glass is the cheapest place on the car to put real carbon where people actually look.
A Feral Auto design, not a copy of any Lexus part, built from 3K premium carbon fiber and shaped to the IS roofline where the roof meets the rear glass. It follows the existing curve rather than fighting it, so the silhouette keeps its shape and gains the material.
Works with the Carbon Fiber Side Skirts and Carbon Fiber Rear Diffuser across the same year range, and closes the top of the car against the 2026+ Carbon Fiber Rear Wing. Included in the Carbon Aero Bundle Kit for the 2026-2027 IS350 F-Sport and F-Sport Design. Also available in FRP, primed for paint.
Fits the 2021-2025 Lexus IS300 and IS350 (Base and F-Sport), the 2022-2025 IS500, and the 2026-2027 IS350 F-Sport and F-Sport Design.
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 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.
A roof spoiler sits in direct sun every hour the car is parked outside, at the steepest angle on the body. That is the hardest place on a car to keep a clear coat looking right, and the reason this piece is worth doing properly rather than cheaply.
Please note: Matte, Honey Comb, and Forged Carbon finishes are non-refundable once the order has been placed.
Browse all Feral Auto Lexus IS aero parts.
Free standard shipping on all orders delivered within the 48 contiguous United States.
In-stock parts are prepared for shipment within 1–3 business days. If a part is not currently in stock, the lead time shown under the Add to Cart button applies. Once a shipment leaves our facility, most orders arrive within 3–7 business days, and freight shipments within 5–10 business days.
We also ship to Alaska, Hawaii, U.S. territories, APO/FPO/DPO addresses and internationally by quote — contact us before ordering. Full details in our Shipping policy.
Returns require our approval. Contact us within 5 days of receiving your item to request one. Approved returns are subject to a 30% restocking fee plus return shipping, and original shipping is non-refundable.
Items that have been installed, used or modified cannot be returned. Non-standard carbon finishes are non-returnable once the order has been placed.
If we shipped the wrong part or it has a manufacturing defect, there is no fee and we cover return shipping. Damage in transit must be reported within 24 hours of delivery — see our Shipping policy. Carbon components carry a 6-month structural and finish warranty. Full details in our Refund policy.
