Originally Posted by burgers22
I would say about 10% in the mid range, mostly due to the extra boost you can run, above 6K the stock turbo can flow enough air without meth/water so gains at high RPM are much less. Still more torque through the rev range over all.
There are plenty of graphs at Evolutionm, and some nice videos as well, with the map switching, it's a pretty sweet toy.
i can never find anything on evo-m good site but massive