Is it just me or does the VI sound different than the USIM? Without the radio on the VI sounds like a truck engine to me. It's not loud, it just sounds rough. There seems to be a slight loss of torque that can be clearly felt from idle to 3000 rpm. I have my VI set at 5200rpm and the needle really starts to fly after that. You really have to see it to understand how cool it is. =) JWT ECU is on the way but I just read Neal's post on valve float at around 6700rpm. This is not good! =(