got a ecu off ebay it was advertised as possibly chipped ,also wasn't guarenteed to be working any way i won it for £25 just as a back up to another one i bought(collins 195) so i stuck it in tonight holy fuck straight round to 20 psi no banging or fuck all so well impressed going to get it set up properly tommorow but i'm using a cossie accuator just wondering if any one is using one on a rst and is it possible to get it down to about 14 psi ?also how safe is it to run a standard turbo on 18 psi for?