Hi, me and a couple of friends are going to the nurburgring towards the end of the summer and we're taking an A4 1.8t each to have a play around. These are going to be cheapies, say around £1200 for the car, then stripped out with coilovers etc. We're obviously after more power so I'm trying to up the boost (don't forget cheap), and with most cars this would be easy but the A4 calculates boost using air mass and rpm (no map sensor) so if I were to up the boost with something like a bleed valve the ecu would simply cut the fuelling and/or ignition and maybe even go into limp as soon as it detects an overboost. How can I kid the ecu into letting me use more boost? Thanks.