I need to do a little more testing, but with the ATR bar and w/o the airbags and a hard launch I had a 1.64 60'. With airbags set @ 22 PS and 9 DS (which seem to be the magic #'s for my car) and the ATR bar I've had a best of 1.55. Take the info for what it is worth. BTW, I am also still using my front swaybar. I am going to try a few runs this year w/o it and see what that gets me.