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TimboN55 TimboN55 is offline
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Posts: 1
Join Date: Feb 2019
Car: 2015 335i M Sport
Default New to N55 JB4 - 02-15-2019, 08:45 AM

How do I know if my jb4 is on the current firm ware? Also I am wanting to make 600 whp on a 2015 335i what is the best way to achieve this? PLEASE HELP
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