FYI the complete list of Lexus parts required to convert a 04-06 UL suspension to sport suspension is below:
FRONT 2 of 48510-80131 2 of 48680-50110 2 of 48680-22050 2 of 48131-50180 REAR 2 of 48231-50210 2 of 48530-80141 2 of 48257-50020 2 of 48341-50070 2 of 48755-50100 2 OF 48818-50020 1 OF 48812-50130
Thanks