Ok I managed to get a reply from the guy on ebay.
My question to him was, "Can you tell me what car you had it on and what was the bhp"
He replied.
"
Dear onlysilverbits,
Hi,
Initially the kit was in a stock Renault Sport Clio 197 and then was transferred into a stock Renault Sport Megane 250. I now have a Citroen C4 for the family to be so will not be modding this... .
Thanks for the interest - just wondering why that would change your decision? I also have 1/2 a can of Piper Cross air filter dirt retention additive that can be included.
I then told him that they were bhp rated and that's why he paid £120 for his and the Ferrari ones (which look identical but must be bigger and constructed different inside are £550.
This was confirmed to me just a few moments ago when a mate who tunes Ferrari's for a living rang me over another matterI have been looking for a 2nd hand one rated 500 bhp and above for about 18 months. But they are like hens teeth to locate.