bryanrocks907 said:
thanks for the reply, i'm not huge into mechanics i'm only going to be in advanced auto next year so i'm not super expeirenced in this sort of thing, so could you be a a little more specific if possible in what i need to do to the gears and stuff of that nature or refer me to a website that can show me how to do it, also do you know how much that will all cost and how much horsepower it will add to it?
gears wont add engine horsepower persay - they will allow you to hit your power band sooner. not quite the same thing - what that means is that you will accellerate a bunch faster, but your top speed will suffer slightly.
that being said, for acceleration they are one of the most effective mods you can have done as far as bang for buck.
also, gears are not something you would do yourself if you dont have experience with it or someone who knows how to do it there to help you - while in theory its a pretty simple thing, it needs a certain level of precision that you need experience (and special tools) to achieve.
regarding the other things, the cai and exhaust will improve airflow to an extent, which lets your engine breath a little better, and make a little more power. cai will only add a few hp, maybe 5-8 (off the top of my head) - the exhaust will add a bit more than the CAI but not a huge amount. itll make the car sound better though

underdrive pullies dont make the engine make more power, but what they do is effectively "route more of the power to the wheels". meaning that normally the accessories like AC and pumps and stuff, take power from the engine to work - this new pulley will turn them less, which reduces the amount of HP you lose from that stuf - this translates into more HP *at the wheels*.
tune is good for 12-15 hp if i remmeber correctly - maybe some more if you really get a good one.
all together though, those mods will add up and make the car a lot more fun to drive -
i have most of those htings (i dont have underdrives) - i have 4.10 gears, new exhaust, decent CAI, and a tuner -
and while i dunno what my HP number is at officially, the car is definitely a lot more fun to drive now .
im sure atlantic will have stuff to say on this topic too
edit: looks like atlantci beat me to it while i was typing
