Right have decided to go for this Intercooler Kit from Regal Autosport. Going to be phoning them tomorrow to see how much it will cost for them to fit, but how hard is it going to be to do myself with a couple of mates who are mechanics and just get it shipped out to me?

as above...has anyone actually had a car on the rolling road to see if there is any benefit to having a Flowmaster? and to see if the standard air box is better with a K&N panel filter??