I wasn't sure where to put this thread, but figured that it was a dress-up question. Mods, feel free to move it if it's in the wrong section.

I've been searching all over for an HKS radiator cap in the traditional HKS purple to match my HKS Circle Earth grounding kit. I've found the Oil cap, but not the radiator. All I've seen for the radiator is the "Limited Edition" D1 GP cap, in red. If anyone knows where I can find one, please let me know!