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      06-18-2015, 12:56 PM   #3
badblack550xi
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Drives: F10 550i 2011 F90 2020 COMP
Join Date: May 2013
Location: NJ

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Quote:
Originally Posted by Mbbrewer View Post
Has anyone tried this before? Good idea? Bad idea? I'm interested in trying this but would like opinions on if it will add any more power and the reliability of doing this.
yeah we had a person do it Middly and it was not good so he stayed with JB4.
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