i just installed my boost guage and im getting about 17psi then it tappers down when i hit higher rpm's is this normal? also will a mbc fix it and will i be able to hold the same psi all the time? any help will be appreciated cuz i hate the feeling of losing the boost.

 

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Make sure that your clamps around the BOV are tight. Alot of people including mine were not tight. But be carefull not strip them out. After I cranked mine down the boost taper was not as drastic.