BMW 3-Series (E90 E92) Forum - View Single Post

Jeff@TopGearSolutions · 12-29-2017, 03:31 PM

JB+ is just a boos scalar, not a tune. It raises boost 3-5 psi. That's it.

If it's between JB+ and JB4 just go with JB4, a lot more control, functionality, features and power potential.

12-29-2017, 03:31 PM	#3
Jeff@TopGearSolutions 3441 Rep 79,211 Posts Drives: C6 Z06, 09 335i, 10 335xi Join Date: Dec 2008 Location: www.TopGearSolutions.com iTrader: (37)	JB+ is just a boos scalar, not a tune. It raises boost 3-5 psi. That's it. If it's between JB+ and JB4 just go with JB4, a lot more control, functionality, features and power potential.
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