I have an existing cat back system, SLP on the car now. I want to add headers an an free flow cats/ X pipe. I really want a setup that will sound good, wake the car up and not be too much of a haste to install and be under $1000
It sounds like these are going to be your best bet then! Pacesetter is a good, quality brand that will get you the performance and sound that you are looking for. As for the installation, however, any mod-motor install (your 2002 GT falls into this category) is going to be fairly labor intensive being that you will need to get the k-member out of the way and potentially lift your engine slightly to get to where you need to be to install the headers!