AIRTEC Motorsport Rear Diffuser Extension for Focus RS MK3 E90 LCI 318d BMW 1 Series F20 and

BMW 1 Series F20 and F21 LCI from 09/2015 onward: 120i

alignment and a tailored fast-road or track-day setup

twin turbo V8 air filter

Key gains on the road

AIRTEC Motorsport Rear Diffuser Extension for Focus RS MK3 E90 LCI 318d BMW 1 Series F20 andAIRTEC Motorsport Rear Diffuser Extension for Focus RS MK3. Made in house at AIRTEC HQ, our rear diffuser extension comes complete and ready to fit with all fixtures and fittings included. All you need to do is choose what position you would like it set to and drill the small, non visable holes in the underside of the existing bumper to attach it. The result is a simple added slice of aerodynamic style to complete the rear end look of any Mk3 Focus