Right trouble sorted!! I work right next door to RGS Motorsport so they had my car the last two days to fix my boost fault. This is the reason and repair. Off the right of the inlet manifold the vac pipe that comes back towards the bulkhead to the ignition timing ecu was causing fault losing pressure. So after repair and a rolling dyno set up fault was identified as that unit (ignition timing ecu) it drop out the timing when under load. So block off the vac pipe to bypass the ecu and car runs a solid 157.6 Bhp at 0.6lbs boost which was nice. Obviously I require a new unit and have re connected this pipe so no boost again!!! But now I am unsure where to get one???? Ideas please!!! Also just bought a new cam and front mount which the tuning tech has recommended piper t2 kit and expects no less than 205bhp. He was very happy with the engines performance and said it was one on the sweetest he has heard for years. This guy also has the most amazing S1 rst which I saw today fully rebuilt nut and bolt wise AMAZING!!! I'm well chuffed but need to get a new unit someone help me out please???