i'm gettin a turbonetics kit and it comes with the raptor bov. is there a site where i can listen to the various bov? i was thinkin bout the greddy type s or hks. does it matter where you mount it as long as it's after the intercooler?

 

http://www.blowoffvalves.com/

 

does the size of your bov have an affect on performance. is there a two pitch blow off valve, i heard people talking of one - like it blows twice.

 

im assuming the bigger the diameter of the bov the more air and faster will get released? no one really looks at bov sizes. almost all of them such as hks and bov are good up to high amounts of psi