Also, try to look for one that is mostly if not completely stock so there's a better chance that it wasn't beat on. Some people will try to revert their cars back to stock when selling them, but some things are just too much work to try and switch back. $7 or 8k for about 80k miles, $5 or 6k for 100k miles, those numbers will apply more to the 02 03 04 gt anything older will cost less.