Originally Posted by bboy8282
If the standard spring that comes with the Tial bov is good for 11psi...does that mean those running stage 1 and stage 2 cobb tunes need to buy a new spring since cobb's PSI is generally around 14-18
Also, how do you check your vacuum
Spring is based upon vacuum PSI only. Not Boost psi. Not sure how to test the vacuum.