BMW 1 Series F40 Rear Diffuser / Valance (2019+) - CT Design Pre-Preg Carbon Fibre (Carbon Fiber) Rear Bumper Insert, Splitter, Undertray - Fits 118i 120i 128ti M135i INTAKE Drivers consistently report sharper response

Drivers consistently report sharper response

We have installed this package on multiple customer cars and feedback has been consistently positive

Direct replacement cat back that keeps the factory catalytic converters in place

We’ve fitted this setup on customer X3s and the feedback has been brilliant

BMW 1 Series F40 Rear Diffuser / Valance (2019+) - CT Design Pre-Preg Carbon Fibre (Carbon Fiber) Rear Bumper Insert, Splitter, Undertray - Fits 118i 120i 128ti M135i INTAKE Drivers consistently report sharper responseCT Design carbon rear valance upgrade for BMW F40 1 Series Transform the back end of your BMW F40 with this CT Design pre preg carbon fibre rear valance. Precision made for the 1 Series platform from 2019 onwards, this premium carbon upgrade delivers a sharper, wider stance and a motorsport look that suits daily drivers and track inspired builds alike. Crafted from high quality pre preg carbon fibre, the finish is crisp, the weave is consistent and