blakey100

Hi
Dunno if I'm in the right area but after sum advice..I have blue finned my st a year ago an one of my mates bought a obd bhp reader off eBay...dunno if any good or if anyone has come across these. But apparently mine was kicking out 178bhp with a bluefin his focus st225 258 bhp. I don't really trust this tool for the price but I took mine back to standard an felt a lot more responsive. I haven't tried his reader again but my main question is does the bluefin make a difference on these or not. Or did I waste my cash. Superchip reset mine after my st200 and reinstalled a map for the 220
Any info would be great