Bad Jb4 dyno results but car seems fine? Please someone help!
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12-08-2012, 11:24 PM
BimmerPost Supporting Vendor
Drives: 2007 335i, 2015 M3
Join Date: Dec 2008
You'll never know since you didn't log your dyno runs. Going forward a good first step is to do the N55 ISO firmware and a datalog to ensure it's running properly now.
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