Re: AUII XR8 rotors
phase4, does the discs have the eclipse grooves as in the photo below? If so, you have 329mm rotors (premium) and not the 287mm (standard) discs.
Part No's 506 (available in slotted only, or slotted and X-drilled), and 4506 (4000 series [much better discs], available in slotted only) will fit the early AUII's with premium brakes. Does your AUII have the calipers mounted on the rearside (10 o'clock), or the frontside (2 o'clock) position when looking at the front right head on? The 506 and 4506 will fit the early AUII's with the caliper on the rearside, not sure if they'd fit the later AUII's and all AUIII's (caliper on frontside) with premium optioned brakes, but I'm almost 100% sure they would.