mmm. yeah tbe, uppipe, and reflash should give some more power.
But that Cav shouldn't have been able to keep up with your 4th gear as autos seem to come alive after 80 mph (at least in my experience and I'm at altitude). I was keeping up with a STi (not really pushing it) and a modded IS300 up until about 90 mph (not in the mood for a speeding ticket). Btw: 90 came up pretty quick and really didn't relize we were going that fast.