Wow very nice - just a quick and dirty comparison, torque gains around 20% in the 3000's. Then around 10% average between 4000 and 6000. And then great gains on the top end, peak gain of about 24% near redline. All with a 'canned' tune.
But wait, this can't be right. I just read on here that the only good header out there was the $1400 ACE? Everything else was crap with torque dips.
