Tire size for E34 Style 5s

[seankim228]

Hi. I've put on my style 5s from e34 on my e30 m3 (http://www.realoem.com/bmw/showparts...=36&fg=15&hl=4) and the tires are 225/60/15...They are way too big and rub the wheel well pretty badly..

Which tire size is most appropriate (and possibly the most economical yet stylish) for my wheels ?

Also, I have only 3mm spacers in the front and the car runs fine but makes a bit of "brushing", a soft grinding noise...Will this fade away w new tires or should I be concerned. . .?What should I do !

Thank you.

[325ixE30]

I'd try a lower profile. 60 series rubber?