Maybe not, but I bought mine in 2016. The one for the C5/B5 was less money than you quote (from memory around £330 (certainly a lot cheaper than a PCV). The CGT one was dearer, apparently because of additional mounting hardware. Whatever, the kit uses the original ECU and generator. Whilst the fuelling side is fine I suspect that the ignition timing is less sophisticated as it doesn’t have variable input from various sensors that have to be disconnected. Hitchcock’s told me that they found the later, simpler version works just as well. Maybe so; without direct comparison it’s hard to say.