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  1. Dual stage MBC help!

    NG900 & OG9-3 Performance, Mods & Tuning
    Hi, I just installed a new boost gauge on my 97 900 vert ( has the 99 9-3 engine). I have a max PSI of only a dismal 5-PSI, so i bought a Dual stage MBC from Turbosmart. I'm hoping this will be the answer to bumping up my boost a bit. Only problem is, I'm not to sure how much PSI I should bump...
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