I found a good set of tires and wheels off of an 01 325. They are 17s, don't know the tire size yet. Will they go on a 93 525? I have the stock 15s on mine.-thanks in advance

You need 17 inch wheels to make them work.

edit: thought you were talking about tires for some reason :dunno

Isn't the offset pretty far off from an E46 to an E34?

What fits my E34 or E32: None of the 3 series wheels fit (except E30 M3), nor the Z3. http://www.bmwe34.net/e34main/upgrade/wheels_upgrade.htm