Upgrade your BMW 1 Series F40 and BMW M135i F40 with a premium pre-preg carbon fibre rear diffuser for a sharper, more aggressive performance look. This UK-designed CT pre-preg carbon fibre rear diffuser delivers standout styling, lightweight strength and a perfect motorsport-inspired finish.
This rear diffuser is crafted from genuine pre-preg carbon fibre (also searched as carbon fiber), featuring a 2x2 twill weave and a deep gloss clear coat. The design showcases three aggressive central slats with additional sculpted elements to the left and right, amplifying the rear-end presence of the F40 platform while complementing dual exit exhaust layouts. It is a stunning styling upgrade that transforms the rear bumper of the BMW 1 Series F40 and BMW M135i F40.
Designed in the UK by CT, this carbon fibre diffuser is lightweight, durable and built for enthusiasts who want premium fit and finish. We have fitted this diffuser on customer cars and the feedback on fitment, weave quality and overall look has been excellent. If you are searching for a BMW F40 rear diffuser, M135i carbon diffuser, dual exit carbon rear valance or BMW 1 Series carbon fibre diffuser, this is the upgrade you want.
Why choose this rear diffuser
- Pre-preg carbon fibre construction for high strength and low weight
- 2x2 twill weave with a high-gloss clear coat for an OEM-plus finish
- Aggressive triple-fin design with enhanced side detailing
- Tailored for dual exit exhaust setups on the F40 platform
- Designed in the UK by CT for quality and consistency
- Transforms the rear of the car with a sharper, sportier aesthetic
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What’s in the box
- 1 x Carbon Fibre rear diffuser (pre-preg, 2x2 weave)
Compatible models
- BMW 1 Series F40 Dual Exit, 2019 to 2024
- BMW M135i F40, 2019 to 2024
Fitting and support
Professional installation is recommended for the best result. Nforcd offers in-house fitting in Warwickshire. Request a fitting quote at Sales@nforcd.com.
Ready to give your BMW 1 Series or M135i F40 the carbon look it deserves? Order this pre-preg carbon fibre rear diffuser today and elevate your car’s rear-end styling with a premium, UK-designed upgrade.