Like I said in a different topic talking about getting alot more speed out of the aveo, the only real times you could get actually NOTICIABLE performance is from:Originally Posted by mystere485
NO2,
Turbo/Super,
Combination of chip/fuel/air intake/muffler
Bigger pistons/bigger engine
Extreme weight reduction (with one or more of the above)
Other than that there is nothing you could do to make things better, although a belly pan might make it look better, and an air dam too.