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Old Mar 23, 2008 | 08:24 PM
  #3  
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mk1 chris
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Joined: Oct 2005
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From: bucks
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you may have an air leak on the boost side of things, i have fitted a fair few with the Blue spring and never had an issue, although i dont go above 20 psi boost

Last edited by mk1 chris; Mar 23, 2008 at 08:26 PM. Reason: added text
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