I have they 17X9J +24 on the front of mine with 10mm slip on spacer. One of the members on here told me Saleen actually used two 10mm slip on spacers but considering how aggressive the front is I think just 1 10mm spacer is good enough. Tire right now is 235/40 with tiny stretch. I will up to 245 tire soon for more tire contact.
Pic for reference.
