Thread: B58 e30 + meth
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jrdoming jrdoming is offline
Junior Member
Posts: 52
Join Date: Aug 2014
Car: 335i
Default 10-16-2018, 04:26 AM

How's the overall smoothness of the driving experience? Still on the fence over jb4 + meth vs straight ecu tune.

2017 340i M Sport. JB4
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