Quote:
Originally Posted by THEROK
Might want to check on the inside as well since your m3 does live in a 3d world.
I forget the rule of thumb, but there comes a certain point where veering too far off the stock diameters will fuq with your gearing and overall bad practice. I personally can't stand mismatched sidewall heights as someone else pointed out already.
Perhaps those more mechanically inclined can clue us in.
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Will definitely pull the wheel off after more miles and check the inside for any evidence of rub, but so far zero noises of rubbing.
Stock has the rear between .5-.6" larger overall diameter compared to the front depending on the wheel setup, 18" base to 20" competition.
Some people speculate that it can mess with factory MDM unless you get Euro or GTS MDM coded and it won't be an issue. As far as how true that is, I have no idea. A lot of owners run a 265/35/19 and 305/30/19 setup, overall diameter comes out to be exactly even at 26.3" front and rear and I haven't heard any issues at all.