Unlike a silicone company, bill had to source everything. Fabricate in house with no mass production, almost custom work. The centre piece took time to make, billet parts always cost mega bucks, then he had to buy the silicone. 3 different parts from 3 different places. Thats why it wasnt cost effective, but it was a mod where money didnt matter because you just wanted the best out of your car. I still use a v1 and im more than happy with it.
The v2.2 and v3 look awesome in the flesh. Also remembering its 17% larger bore than the sfs.