BMW F98, X4M Carbon Fibre SQ Style Roof Spoiler

BMW F98 X4M Carbon Fibre SQ Style Roof Spoiler

Finish the top of your BMW X4M with this SQ Style Roof Spoiler — a twin-wing carbon fibre design that mounts above the rear glass and gives the X4's sloping roofline the hard stop it was always missing.

The factory roof spoiler on an X4 is a single soft blade. It follows the roofline but does not do anything with it. The SQ design splits that span into two raised outer wings with a channel between them, so the roof reads as engineered rather than merely tapered — the same visual trick BMW uses on its own motorsport-derived cars.

Because it sits at the highest point of the car, this is the change that reads first in a mirror and last in a rear-three-quarter photo. On a coupe-SUV it does more per dollar than almost anything else.

Moulded in dry carbon fibre with a gloss clear coat and formed to the exact contour of the roof, it fits over the factory panel with supplied automotive tape — no drilling into the roof skin.

Key Features

Dry Carbon Fibre

Genuine dry carbon construction with a deep gloss clear coat, lightweight where weight matters most — at the top of the car.

SQ Twin-Wing Design

Two raised outer sections with a channel between them, rather than the factory's single soft blade.

Mounts Above the Rear Glass

Sits at the top of the tailgate glass, which is where the roofline actually terminates.

Moulded to the Roof Contour

Formed to the exact curve of the X4 roof, so it sits flush across its whole span.

Tape-On Installation

Fits over the factory panel with the supplied automotive tape. No drilling into the roof.

Pairs With the Rear Range

Designed to work alongside our X4M rear diffusers and trunk spoiler for a complete rear treatment.

Styling Benefits

• Gives the sloping coupe roofline a defined finish
• Twin-wing shape rather than a single soft blade
• Genuine dry carbon weave that matches other carbon parts
• No drilling into the roof skin
• Fully reversible at resale or end of lease

Vehicle Fitment

BMW F98 X4M Pre-LCI (2019–2021)
BMW F98 X4M LCI (2022–2025)
BMW G02 X4 / X4 M40i (2018+)

Please Note

Please select your exact model above so we can confirm the correct part before dispatch.

Professional installation is recommended. The roof panel must be clean and dry, and the spoiler positioned and taped for alignment before the backing is removed — once the adhesive is down it does not move.

Allow the adhesive to cure before washing the car.

Carbon fibre is a natural woven material. Minor variation in weave pattern between pieces is characteristic of the material and not a defect.

Made to order. Please contact us to confirm current lead time before ordering.

Why Choose Proven Performance Parts

We specialise in high-performance parts for European vehicles — including Volkswagen GTI & R models, Audi S/RS platforms, and BMW M vehicles. Every product we offer is carefully selected for its quality, fitment, and real-world performance — tested by enthusiasts, for enthusiasts.