360 & F430 Challenge Wheels $2,750
These are wheels I'm having made.
I can have another set made for you if you want one.
8x19 et 28 mm, 10x19 et 30 mm. The front wheel is 0.5" wider and all wheels are 9 mm further out than OEM Challenge wheel. The stock et numbers are 9 mm higher because they sit 9 mm further inside the fenders. 9 mm is less than 1/3". This is still a conservative offset.
The pictures of the wheels are renderings from the CAD software used to design the wheels, they are not real pictures.
Production of the wheels is scheduled to be done within the next two weeks.
PM me if you want more information or for my contact information.