Well the fact remains that Ford built these motors to handle a good amount of extra power, thats why they sell tuners for them and superchargers the differance is Ford knows how to keep the tune safe for the parts they engineered for this motor and also know how everything in the ECM works. This may just be part of the learning curve on these cars for the aftermarket tuners who were the first to market or smaller tuners who wanted to get a few extra hp then everyone else. Look at how many MOD motors knocked the tops of the piston off with boost and detonation. Just my .02