Review on Enhance Performance: Air Intake Turbo Charge Hard Pipe Kit with 50mm BOV Replacement for BMW N54 E88 E90 E92 135i 335i 335 by Joe Duncan

Buy an o ring first as you will spend 40 minutes to make it stay. The BOV pipe does not fit my BMW E93 335I convertible even though it says so. It is very difficult to connect metal end to metal end with very little space. Finally the yoke, again very difficult to hold the o-ring in place, attach the valve and use a very complex yoke. I believe most of the clips that were supplied were the wrong size. The reason I say all this is because if you want to return it, it's too late as the device has scratches and you can't return it.