My avatar is a picture of the remains of my st170 after i rolled it 5 times at 85mph in august last year! Smashed my pelvis, ribs, arm, hand internal bleeding. nearly killed me!! a flash map is a generic map written for the st170 model and is uploaded to your ecu, a live map is written on a rolling road specifically for your car and is infinitely better than a flash map as engines are not generic they are all different