Quote:
Originally Posted by JCarrese74
So I have a 2023 M240i Xdrive with AA Catted downpipe, MST Cold air & JB4 with EWG hooked up. I ve been running Map 3 with 93 Octane and my question is how accurate is the Boost Gauge from the JB4 app. There have been multiple times I hit 30+ lbs of Boost, is the accurate?
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I recommend doing a proper datalog for accurate numbers