Carbon Fibre Performance Rear Diffuser for BMW 5 Series by FORM (2017+, G30 G31)
Delivery & Availability
Delivery & Availability
Not all products are held in stock due to the specialist nature of many performance parts. While most items are available for next working day dispatch, selected products may carry extended supplier or production lead times.
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Description
Sharpen the rear profile of your BMW 5 Series with the Carbon Fibre Rear Diffuser from FORM. Combining aerodynamic function with aggressive styling, this diffuser bolts directly in place of the factory unit for a clean OEM+ finish.
Key Features:
- Direct OEM fitment — retains factory mounting points, wiring connectors, and sensor cut-outs where applicable
- Aggressive vertical fins add visual width and motorsport presence
- Improves underbody air extraction for reduced rear lift and improved stability
- Lightweight carbon fibre construction with a UV-protected gloss clear coat
- Direct-fit replacement for the OEM lower rear bumper section
- Backed by FORM Industries — a trusted name in OEM-level aftermarket upgrades for modern performance cars
Materials & Construction: Manufactured from high-grade carbon fibre with a UV-stable clear coat, this component combines lightweight construction with the distinctive weave finish that defines performance-car styling.
Vehicle Compatibility: Engineered for the BMW 5 Series, model years 2017+, G30 G31. The part uses factory mounting hardware and (where relevant) existing wiring connectors, so a standard install requires no modification to your car's bodywork or wiring loom. Chassis codes matter — please confirm yours matches the listed fitment above before placing your order.
Installation: Fitment is straightforward for an experienced installer using standard hand tools. We strongly recommend installation by a qualified bodyshop or detailer, particularly for exterior components that require panel alignment, adhesive bonding, or painted-surface preparation. Full fitment guidance is provided in the box, and our support team can help confirm the best approach for your specific car.
The FORM Industries Difference: Where many aftermarket brands compete on price, FORM competes on fit and finish. Every part in the catalogue is developed on real cars — not just in CAD — with panel-gap tolerances, material selection, and finishing processes benchmarked against the OEM part it replaces. It's why FORM has become one of the go-to names for BMW M, Audi RS, and Porsche GT owners looking for an upgrade that genuinely measures up.
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Clearpay Payment
Make your purchase more affordable with Clearpay's interest-free installment plan. Pay for your order in 4 equal payments, taken every 2 weeks. The first payment is made at checkout, with no interest or hidden fees when you pay on time. Instant approval decision with no impact on your credit score for on-time payments. Perfect for budgeting your shopping while getting what you need today.
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