Quote Originally Posted by S4saken View Post
Running a bov on these cars will cause it to run rich between shifts. And unless you have one that is completely closed at idle it will run rich then also. These cars where not ment to run bov cause ur letting metered air out of the systems some people have run BOV's no problem and other have problems, it hit or miss really but know that your car will always run better with a diverter valve. If you absolutely have to have the whoosh sound go with a forge spliter and vent/circulate 50/50.
I have a Forge on my 03 a4 and a Forge hybrid is not really 50\50 its adjustable and u can go 25\75 or vice versa depends on what you want to here lol