Hello my name is Preston, I recently helped install a jb4 on my friends N20 2012 BMW 328i. I was just wondering what map he should run in order to get the best performance and reliability because he does daily it. The only mods done to the car is a gutted *** and a muffler delete.
It really depends what fuel is being used but map1 is the starting point for most N20 applications.
Burger Motorsports
Home of the JB4 the worlds most popular turbocharged tuning system!
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