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      06-21-2013, 10:29 AM   #1
Andrewe92
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Drives: 2011 e92 lci 335xi
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jb4 no boost under certain rpm?

I'm still reading into the n55 as much as I can.. quick question tho. from my understanding when the n55 is untouched it doesnt give boost unless you go over a certain rpm? 2500 i think? but does this change with the jb4 and also if i do throw in a jb4 is it 100% necessary to get a charge pipe? I obv dont want the stock one to break but i also dont wanna spend to much just want a little more power thats all.. thanks in advance
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