BMW 1 Series & M135i F20 F21 Pre-LCI EVO-1 Gloss Black Rear Diffuser by ZAERO (2011-2015) BMW M140i you can regulate the valve

you can regulate the valve position in real time — either fully open for maximum sound or regulated for a more subtle acoustic profile

600nm -> 650nm

Secured with laser cut stainless steel brackets on the OEM mounting points

the new free flowing half system improves the vehicles power and sharpens up throttle response as well as reduce the overall weight

OEM Part Number: BMW: 17212244084 Superseded: BMW: 17212244083

BMW 1 Series & M135i F20 F21 Pre-LCI EVO-1 Gloss Black Rear Diffuser by ZAERO (2011-2015) BMW M140i you can regulate the valveZAERO Design has been making high quality rear diffusers for BMWs in recent years. Their latest creation is the Gloss Black Rear Diffuser for BMW M135i Pre LCI F20 F21. This diffuser is made from ABS plastic and gives your car a sporty, aggressive look that will turn heads everywhere you go. When it comes to quality, ZAERO Design is second to none. Their products are made to last and backed by a 100% satisfaction guarantee. So don't wait any longer,