Hmm.. I thought you had found it already. It is called VIP kit. lol

They are all over Ebay (keyword--> sc430 bumper), even a couple of CL venders here are selling those replicas.
https://www.clublexus.com/forums/sho...d.php?t=369969

Tom's, Wald and Erebuni replicas, take your pick and tell us the fitment after you put it on.
The price is half to one third of the authentic ones.