Quote Originally Posted by EM1toEVO
I have heard that AMS(one of the best Evo tuners) state that they have their power limitations. Basically, it won't be as good as the 4G63 iron block. I think only time will tell what the tuners are able to get out of it. After all, many aluminum blocks handle large amounts of power.
yes but the power these cars have been making so far is crazy, with just exhaust and no tune.