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      09-06-2012, 01:31 PM   #8
First Lieutenant
Drives: BMW 335i
Join Date: Feb 2010
Location: Pasadena, California

Posts: 390
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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
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