I have heard from many differnent sources that putting a bypass valve on cai hinders its preformance. Is this true??

Thanks

 

depends on what type of bypass valve. Some act as a valve as others act as a mini filter

 

Bypass valves, such as the one in picture 1, is a filter type bypass valve... It is the bypass valve people say renders the performance

and here is the type of bypass valve you want to get


thanks to g22 for the pics