Brand new c/f Mtech2 diffuser, $500. This is from the same guy in Belgium (Tom - userid CTD on e46f) that makes the c/f splitters. I've got an order of splitters coming and he said he'd ship the diffusers to my house for free, so you'd only pay shipping from my house plus the cost of the diffuser. This is not mine. I'm only listing it as these are hard to find.