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      02-28-2012, 09:35 AM   #3
pnosker
ti fan
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Drives: 14 12C | 17 X5 50i | 19 M2C
Join Date: Jan 2008
Location: NJ

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I was also thinking about this. The E82/E88/E90/E91/E92/E93 all share the same rack so if we can find a E90 guy who has swapped that means we are good (http://www.realoem.com/bmw/partxref.do?part=32106777463). Likewise, the M3 and 1M share the same steering rack (http://www.realoem.com/bmw/partxref.do?part=32102283633). There are some slightly different shields with the racks however, but I don't think they will affect anything. I would also imagine the tie rod ends won't matter since you should be able to align out the slight difference.

The 2.2 ratio rack is much faster than the 2.75 rack of the 135i. I'd like to make the upgrade but won't be able to afford it in the near future. If anyone else gives it a shot that would be awesome. It's common to swap racks on cars (E36 often swapped the Z3 rack in for 2.5 ratio instead of 3.25+).
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