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so if you blow up your engine you will pay for it? Come on man, you are going to delete your codes and take out the Jb4 and take it to the stealership with a look of disblief and have them fix it for you.. :-) with that said, I have jb4 and even map 2 you will be fine. I need map 7 every day all day to feel any power that makes me go wow.
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2011 e90 KW V1, JB4, BMS Dp, BMS Intake, CP, Alpina Flash, ISO, E85
Coming soon to the garage: 2014 M3 Maybe M5  |