Originally Posted by Crucial Racing
I don't specifically know the answer to that, but the part numbers I've posted are the ones that Koni North America lists for fitment on the USDM cars. They're definitely being used on USDM cars without issue.
It would be wise for you to find out the answer to this question. If it uses the stock ones, that would be a good selling point as it would save buyers another $100 compared to Bilstein struts.
If it requires the Spec B tophats, it could cost a buyer a lot of money if he is paying for install, it doesn't work, then has to spring for the Spec B top hats and the cost of another install.
EDIT: I'm not being critical of Crucial because I don't know how they are going to handle this, but I hate it when vendors place the burden of discovering whether a certain part fits upon the buyer instead of doing the leg work themselves before promoting a product. I've bought stuff from Crucial before, and I'm sure they'll find out the answer.