Since Active Autowerke insists that their BOV is worth $750, I think this little DIY is great. Not extremely loud. But noticible, and nice. Member JOEVISTA clued me in on exactly how to do it. Thanks!
Tools:
(2) 3/4" Pipe plugs
Electrical tape
WAIT UNTILL CAR IS COOL!!!
Disconnect the ends of the diverter valve hoses that feed into the pre-turbo air ducts. There is one that is easily accessible from under the hood,
and another that is partly covered, direcly behind the air filter housing. Follow the rear facing diverter hose and disconnect it where it ends.
Make sure you do BOTH!!!
Take the 3/4" plugs and wrap them in one layer of electrical tape(to help it fit more snugly). Plug both bungs that have been left exposed and wrap them with more electrical tape. The electrical tape will become sticky and a good sealant when it heats up. (Also, it is completely removable)
REMEMBER THERE ARE TWO DIVERTER VALVES! YOU MUST DO THEM BOTH!!!!!! ONLY THE FORWARD ONE IS PICTURED HERE!
Secure the two free hoses.
Fire it up and enjoy!
Video will be up soon.
YOU DO THIS AT YOUR OWN RISK!