yah I agree with davidreader5, although Im not an expert, I personally would turn it down, maybe get some greens and a chip (speak to karl norris) he tuned my RS500 to a proven 371 BHP, on standard compression, 25psi, greys, BD10's, verniers,chip, and I had MOT yesterday and CO reading on greys was 2% ! now thats fookin good!


cheers to Hulland Ward Garage, Derbyshire, ( saph cossie owner) for the extra care taken!


cossyman