ARP extended wheel studs
 

ARP # 100-7715 Studs for IS300. Protrude about 2" length from wheel/hub mating surface.Price is for two sets of 5. Will ship priority mail for $7.50 additional.

i have these on my IS300 and theyre one of the best mods to do if you plan to run multiple wheels or want to run slip on spacers down the line (much better than bolt ons). you will need open ended lugs though (or some super long closed ones, like 326).

good price as well!