I think i have to disagree....
Ever tried it with the 2052?
Evo 3 and 4 loved them, I reckon the torque will also...
It gives most bottom power, you have never experienced, but fuel consumption rises....
I have tried the 2052 with all three headers and the power seems very flat to me. With the 2033 Picco pipe and the 2015 Novarossi pipe and a medium header the response is instantaneous of the line, on 180 degree turns and switch backs.