I have an '01 S10 that I was looking for simple mods for. There really aren't any mods that are worth the money for these. Programmers, TB spacers, pulleys, may get you 5hp a piece if you're lucky. Catback exhaust as well, but with that, you get the added benefit of a shitty sounding truck to drive everyday. I'd say gears would be the best bang for the buck, but you'll need to have it programmed after doing so, so that's not even cost effective.