Hey, Ciaran, Stock + exhaust to this stage very nice change, can't believe that it pulls so hard all the way through each gear, its nuts. Going to port the turbo housing next and the boost is a little unstable, then intercooler, then hide from the wife for a while....... 601turbz, running 12psi thanks to the 12psi turbosmart actuator. Don't think I need any more yet until I do the valve springs! Thanks Guys, Brett