[92rs25th]

When you buy headers , You got to remember it may not be fully effective with a stock exhaust set up such as cat , pipes , muffler. If you go with a 1 5/8 ( Dunno if you have an 8 or what. ) but you get a 3" out of the header than you mount that with an adapter to like a 1 7/8 or 2 - 2 1/2 it will be cutting back some flow plus stock cats aren't designed for headers and more flow like that so that will be something else to consider.
Headers are a cheap quick way to get a few ponies though , no doubt.If you do that , Just go through the whole exhaust , I've heard of people getting around 60 HP of Hi-perf. exhaust set ups from like magna flow , flowmaster. n what not. Check it out see what you can get for your money. Best way to save money on it and still get performance is tons of research =) Good luck.