Fuhhh nice la peak torque 4k RPM. Mine peak slightly higher at 5K RPM, but pulls alot longer kot, since peak HP is at 7000RPM and even above that still the HP doesn't drop off that quickly. i suspect my downpipe might be a restriction as I am using the original EVO downpipe, and also the fuel quality... But damn reluctant to run on RON97i dont know where i put my dyno sheet, cant recall the torque . peak hp around 5k ish rpm and peak torque around high 4k rpm, thats why i limit my rpm at 6.5k rpm.
running and tuning 97.