I have installed on my 2011 135i TCKline coilovers with stiffer springs(450 in front and 700 in the back) and M3 control arms and bushings. The car is much lower than stock now. With the upgrades(Intake, Dinan stage II, downpipe...) I currently have 400HP and 465 Lb torque.
I have been going to the track 6 times a year, and my Michelin's PSS are wearing out on the front tires on the outside. I know these cars tend to understeer, so I was thinking in doing some changes.
Do you know if 235 40 18 in the front and 255 35 18 in the rear will rub with the car lowered and stiffer suspension? I am thinking in getting Toyo's R888 for track only. All I want is to have more grip and wear less on my front tires. Any other suggestions that could give me better results? I have lots of power and good grip, but the front ones are not lasting much unfortunately.
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