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im considering a BMS box only cuz of the cost. I really want to do a 3 stg manifold + aa tune but thats quite a bit of coin.
yes it will help, no its not a chip or tune. just throttle remap. idk wtf your talking about with the spark plugs......
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2010 335i M sport
2008 328i
2006 325i
1995 Z28 6spd - 377rwhp rip
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