The words in bold has nothing to do with the fact of whether its believable or not. We are not a fraternity its an open forum and treat everyone equally, hence why its free to be a member, cos its open to all. And all opinions are taken in to considerations whether you are new or old, we are all equal, except Louis who suffers from hiding in the closet and Sarnie who has little big man syndrome
If you buy because of its looks and for name sake to have cosworth under your bonnet then good on ya. Its a shame that the person previously who was selling claimed and estimated output without one shred of evidence to back it up. The majority of people would like some evidence into the claimed 24bhp increase in order to entice them into a sale. But for someone to turn around and say well buy it first then see for yourself, is not the kind of truth or dare game most of us wish to play especially at that price.
By all means if you do a dyno test on this and post it on here, Im sure all of us would be interested to see the gains if any and can make our decision from there.