04-20-2018, 08:39 AM
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#101
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New Member
Drives: 435i xDrive Gran Coupe
Join Date: Mar 2007
Location: MA
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Quote:
Originally Posted by jpc647
That's strange. My experience with the stage 1 was, meh. Sure it seemed to pull a little harder in the midrange, but it tapered off and broke up close to redline. Not substantially faster than stock. Certainly no where near the 40/50hp claims.
I only did about 150 miles with the stage 1 in the car, but didn't notice weird shifting or drivability problems.
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Are you on 93 Octane?
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