BMW G22, M440i Carbon Fibre PSM Style Rear Trunk Spoiler

BMW G22, M440i Carbon Fibre PSM Style Rear Trunk Spoiler

Add a more aggressive rear profile to your G22 4 Series with the PSM Style Carbon Fibre Rear Trunk Spoiler, a raised ducktail design that lifts the boot line and gives the car a noticeably more purposeful silhouette.

Manufactured from premium carbon fibre with a high-gloss twill finish, the spoiler follows the contour of the factory boot lid across its full width and rises to a defined lip at the centre. The underside is shaped to sit flush against the original panel, and installation is typically completed using automotive-grade adhesive tape.

It suits a daily-driven M440i or 430i where the aim is a sharper rear end without the visual weight of a pedestal wing.

Key Features

Premium Carbon Fibre Construction

Manufactured from premium carbon fibre, chosen for its strength-to-weight characteristics and the depth of its finish under direct light.

Aggressive PSM Style Design

A raised ducktail profile with a defined trailing lip, adding height at the rear without the proportions of a full wing.

Full Width Fitment

Runs the complete width of the boot lid and follows its curvature, so the spoiler reads as part of the original panel line.

High Gloss Twill Finish

A clear gloss finish over a consistent twill weave, matched to the look of factory BMW M Performance carbon components.

Lightweight Construction

Carbon fibre keeps the added mass minimal for a panel mounted this high on the car.

Precision Fitment

Shaped specifically for the G22 coupe boot lid, following the original contours.

Performance Benefits

Enhanced Rear-End Styling

Sharpens the rear of the 4 Series while keeping the OEM+ character that suits a daily-driven car.

Improved Aerodynamic Profile

Designed to complement the vehicle's aerodynamic profile and help manage airflow leaving the boot lid.

Lightweight Exterior Upgrade

Adds presence at the rear with minimal additional weight.

Completes Your Carbon Fibre Build

Matches the weave and finish of the rest of the Proven Performance Parts G22 carbon range for a consistent exterior package.

Vehicle Fitment

BMW G22 M440i Coupe (2020+)

BMW G22 430i Coupe (2020+)

Please Note

Professional installation is strongly recommended.

Designed for the G22 coupe boot lid. It is not designed to fit the G23 convertible or the G26 Gran Coupe, which use a different rear deck.

Installation is typically completed using automotive-grade adhesive tape. Correct surface preparation is essential for secure installation.

Minor preparation, alignment or adjustment may be required during installation to achieve optimal fitment.

Due to the nature of carbon-fibre manufacturing, slight variations in weave pattern may occur between products.

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.