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      07-02-2009, 12:11 PM   #3
BMW M Power Mexico
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Drives: '09 E90 M3, '11 1M
Join Date: Feb 2007
Location: South

Posts: 218
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I am running BFG's R1s square 275/35-18s.

I have three track days on them and they are holding up quite well. I think they will deliver 6 days. Grip is stupendous. Shaved more than 3 seconds from a 2:04 lap time. WIll definitely get them again after they wear.

Pressures have to be kept between 38 & 41 psi for best grip. If they go above 41 they start getting a bit slippery.
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