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      09-21-2009, 04:28 PM   #19
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Drives: '09 Cpe Silverstone FR 6MT
Join Date: Nov 2008
Location: Colorado

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2009 M3  [4.20]
Originally Posted by H Bomb View Post
so which one of the two is closer to the one they make for the man??

so your sayin the 4.10 they make for my car will be to short for daily use?? or just if they made that for the DCT??

I'm not sure that I understand your question. Is your car a 6MT or a DCT? The 4.10 is for the 6MT, while the 3.62 and 3.45 are for the DCT.

The 6MT and the DCT have entirely different gear ratios, with the DCT being much lower in the first two gears, in particular. Some people say that the 3.62 is too low for the DCT, but that depends on how you plan to use it. (It'll work and feel faster, but is actually slower in the 1/4-mile). Anyway, if the 3.62 is marginally or arguably too low for the DCT, then the 4.10 is going to be way too low, such that 1st gear wouldn't even be needed to get rolling. Also, that would likely confuse the DCT's computer no end.

So, the 4.10 is superb for the 6Mt. I've got it and love it. If you want to change the FD on a DCT you should search the threads about that to help you decide which you'll like most. There's been lots of discussion here.