BMW 3 SERIES E91 WAGON IN-CHANNEL RAIN GUARDS WIND DEFLECTORS 2006-2011

Installationis quick and easy, with no exterior tape needed. 

IN-CHANNEL WindowDeflectors do not stick to the outside of your vehicle.
They install inside the window channel whichprevents anyone from stealing them or pulling them off.
These low profile window deflectors help toreduce wind noise from the road and allow interior heat to escape.
It also prevents water from coming in when itis raining. Gives any vehicle a sleek clean look.
Side Window Deflectors are
precision-machined to perfectly fit your vehicle