Im sorry, but i can't believe a fully automatic ztech beat a cavalier mtx. 1) Cavalier is lighter and comes with more horse power.
2) the atx already draws more power and torque than an MTX
3) having a stright pipe for exahust in my experience can cause loss of power in lower rpm in a 4 cyl. Which means only his upper band will get power...true its nice, but by the time you get the power, the cavalier is already at his peak and maybe past and getting ready to shift. Im my experience, back pressuer is a good thing on a 4 cyl.
These are the 3 main factors you have to look at. I can see if it was MTX vs MTX and maybe then the story might be believeable. but even then the guy in the cavalier would have to make a mistake or know not how to drive to lose.
Im not trying to "put down" a fellow contour driver, but im sure that we these 3 points, you can understand why its so hard to believe. an intake and exahust will only give you so much. and even if the cavalier had an intake and exahust too, you'd be right back where you started if both cars are stock.
Roz