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      12-04-2012, 01:41 PM   #260
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Drives: 2006 M Roadster
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Quote:
Originally Posted by tikamak View Post
Is what i said interesting to anyone over here?
I've been interested in doing that too, but from the little research I did it seemed prohibitively expensive.

The only difference is... I'd like a longer 6th. 5th gear at redline is 150+ mph with 3.91 gears. There's no need to make 6th shorter, so instead I'd like it to be longer to gain back some of the mpg from going to 3.91 or 4.10. For cruising it would be really nice to stay at low rpm at 80mph.
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