I saw that also while waiting for mine to get delivered. My down pipes are in now, along with a S&B cold air intake, AFE y-pipe, high tuck cat back, and the Scorcher GT power module. I am very happy with the down low power, and you are correct, the top end doesn't feel as beefy. The exhaust note is exceptional though, and I am hoping the ECU will continue to "learn" as it keeps breathing more O2 than it is used to. To install the scorcher module I had to remove my tazer mini. It went into limp mode the first time. I will likely try adding it back in this week. I wanted to give the system/sensors time to relearn levels before adding it back into the equation.jk gear and gadgets tested the afe and reported that they felt better but accel tests showed no difference, iirc. the video is on youtube.