If i was you i would go for the exhaust. Nothing better than a good sounding car.

 

Yeah if I remember right the GMPP was pretty expensive

 

Any GM dealer can order one, might even try Dal/Jason Cromer, etc. Here's a list of all the F-1 options...including the cold air:

http://members.aol.com/blownf1/f1prices.html

It's a bit more expensive than the others, beyond that they're all the same in my opinion.

 

what did you use to make your own intake?

 

Are you asking what materials or what writeup I followed?

I used this writeup, and the materials listed.. My filter was bigger and it sticks throught the bottom or the fender a little and has almost a ram air effect. I also blew out my intake elbow so I used a plumbing rubber 90* coupler going from the MAF to the TB..

 

I did CAI first, then catback. My reason for this is because, you want don't want to starve the motor for air. With more air going out with a catback and less coming in with stock air box, it's choking. So CAI first then catback. Also, i noticed the exhaust on my car get louder and deeper after installing the CAI. Must be the extra air flow getting into the engine.

 

I have a Random Tech cat back and an LPE CAI, I noticed some good gains with the both of them.