I have been running the adjustable rate of gain fuel regulator and wideband sensor for over 6 months now...running up too ten psi with external..I now have a factory turbo and manifold too go on.. (current set up just welded flange too factory manifold..as you do)mixture control at the moment is not perfect but I keep it rich if anything..if a flash tuner can communicate with my ecu I am prepared too try it as I can make.sure mixtures are good..has to be better than what I have now especially considering timing control which I don't have..I have a spare engine which cost next too nothing..I'm very surprised I haven't needed it, even had the downpipe red hot..so will a sct tuner load the tune if I wire in a turbo map sensor..one guy reckons he already done it but really?