Hi PMason - re those wheels - you need to get the seller to provide the ET from the inside of the wheel. A front ET of 52 did fit over my M030 brakes running a small 4mm spacer. I run 16x8.5 wheels with a 55ET both front and back. Custom made per ITR rules. I could have gone 17 and wish I had but got the wheels in a group buy.
Here's M030 specs:
Qty
968 M030 Parts
C2 Turbo (Cup 1) style wheels
2
965-362-124-05-61M
Front wheel (#1), silver-metallic cast aluminum, 7.5" x 17", 65-mm offset
2
965-362-128-00-61M
Rear wheel (#1), silver-metallic cast aluminum, 9" x 17", 55-mm offset
Qty
968 M030 Parts
993 Cup (Cup 2) style wheels
2
993-362-124-05-61M
Front wheel (#1), silver-metallic cast aluminum, 7.5" x 17", 65-mm offset
2
993-362-128-00-61M
Rear wheel (#1), silver-metallic cast aluminum, 9" x 17", 55-mm offset
Cheers