Agency Power and Vivid Racing just finished testing the all new turbo inlet pipe and 100% BOV setup on the BMW 335I. 

The product uses larger diameter stainless steel piping with silicone couplers. The intake pipe is designed to flow air faster and more efficient. Because of the design of the factory diverter valve system, the Agency Power BOV is put in place to vent air faster giving you quick spool up between shifts and that awesome BOV sound!

or click this link
http://www.vividracing.com/catalog/images/335ibovpipe.wmv