Gloss Black Competition Rear Diffuser Set for BMW X5 by FORM (2018+, G05)
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.
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Description
Sharpen the rear profile of your BMW X5 with the Gloss Black Competition 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
- Direct-fit replacement for the OEM lower rear bumper section
- OEM-grade gloss black finish with high-build primer for a deep, mirror-like appearance
- Backed by FORM Industries — a trusted name in OEM-level aftermarket upgrades for modern performance cars
Construction: Pressed in durable ABS plastic with a multi-stage gloss black paint finish — primed, base-coated, and clear-coated to OEM automotive standards. The finish is deep, reflective, and paint-matched to the BMW Black Sapphire / equivalent OEM darks for seamless integration on factory-black cars.
Vehicle Compatibility: Engineered for the BMW X5, model years 2018+, G05. 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.
Klarna Payment
Experience the freedom of flexible payments with Klarna. Split your purchase into 3 interest-free installments, pay in 30 days, or choose our financing options for larger purchases. No hidden fees, instant approval, and complete purchase protection. Klarna makes shopping smoother with the ability to try before you buy - perfect for online shopping. Track all your deliveries and manage payments easily through the Klarna app.
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.
Why Shop With Fity9 Performance?
A range of performance parts to match your lifestyle and needs.
Shop with an expert, right from home
Get personalized advice via call, chat, or video anytime.
Fast and convenient door to door delivery
Get your order delivered straight to your doorstep
Enjoy hassle-free returns & exchanges
Try without worry—return or exchange from
