[ChillyBear]

Tygen, does the zx2 exhaust cam's year or transmission make a difference for fitting on mine? I know some cars have different cams for different transmissions. This is a VERY good tip by the way. Thanks, I just wonder if I will need to reprogram my computer for this or not.

Mine is a 2004 zx3 with a 5 speed. I agree with the earlier post that this forums isn't for performance. Which is fine, I go elsewhere for that stuff, and in reality my car is fine for back roads where little power is needed, Im probably going to do the "invisible" aero mods because looks of a car a truly more important than a 2mpg gain. Ill most likely do the underbody and possible grill mods, along witht he block heater. I havent figured out my mileage, but I really just want to lower my highway mileage because I don't have the discipline to keep it under 2k rpms in the city, I do 2.5k most of the time to keep the little shift arrow from lighting up on the dash. But I know that next year in college im going to be strapped for cash so that may change.