Originally Posted by M3V8Driver
Thanks guys. I'm assuming I would need 5mm spacers for the rear then so that the front didn't end up with a wider track.
You can run a spacer in the back but there's no "need" to. Its fine with just the regular bolts.
In fact, one of the reasons I went with the OEM rims was so I could use OEM bolts to hold my RComps on the bottom of the car.
An added bonus is that OEM 18" rears will clear the Stoptech 380mm front brake kit, at least according to the measurements with the template. OEM 18" front's won't.