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Primefactor23 Primefactor23 is offline
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Car: 2016 550i
Default Custom jb4 - 04-02-2021, 07:36 PM

Has anyone customize there jb4 with the N63tu motor what were your gains and how can I get mines custom I have ********* and the jb4 nothing else but want a few more horsepower out this jb4 which I know It can do and any suggestions on what to get next other than meth injection for more power Id appreciate it
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Steve @ BMS/Fuel-It! Steve @ BMS/Fuel-It! is offline
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Default 04-05-2021, 11:12 AM

Best to post a log for review and go from there. We can't really offer any advice without that.

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