Installed my AFR 165's last weekend and finally got my bugs worked out. Doesn't feel as strong as I was expecting but definately a difference. It will easily break em loose just punching it in second gear at about 2,500 rpm's. I was suprised at how much different it sounds, and I'm not sure I like it. With the off road x-pipe and flowmasters it almost has a rattely sound at 2,500, but that goes away really fast when my foot gets heavy