I've looked around here, clubwrx and nasoic for answers but never really found an answer that I am looking for.

I have an 02 wagon on Tein flex coilovers and a BBK (floating rotors) up front. I have 17" wheels that barely clear the caliper - I had to shave down the driver side and will need to shave down the passenger side a tiny bit.

I'm looking for a second set of wheels that I can use either on the track or street.

My question is = what offset on a 17-inch wheel do I need to clear the BBK?

TIA for your help