I'm running the 15x10's with 7.5 BS. I had a pair of 6.5 BS on, but it looked awful. They stuck way out. Did have 26x11.5 ET Streets, but now am running 28x10.5 ET Drags. Even after grinding the fins off, I couldn't get the rims to fit, so I'm running spacers at all four corners. Works good, and gives me 3/8" more clearance inside.

www.tweakedzed.cz28.com

SIR launch pics are with the 28's