Thread: Dinan stage 2
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      04-28-2012, 02:29 PM   #3
Hangtime
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Drives: 2008 135i
Join Date: Dec 2010
Location: Granger, IN


Posts: 19
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Based on my experience with my 135i/N54 Stage 2 software, I would look elsewhere. At full throttle, my engine oscillates/surges violently making the car frustrating to drive. Dinan is aware of the problem, but have no plans to fix it per my dealer. I would guess the 1M version of the software has the same problem. If you do a google search, you will find multiple forum discussions regarding this issue.