Welcome to TN! First of all it's called a Tacoma and not a Tocoma

. Chips do nothing as well as the Tornado and throttle body spacers, so don't even think about those things! Second, chips do nothing as well. It's basically a 20 cent resistor you can pick up at Radio Shack. It fools your engine by telling it that the air is actually cooler than it really is thereby using more gas. The only proven methods of gaining any reasonable amount of HP is either a turbo or a supercharger, not cheap by any means, but you can get at least 75 HP with the correct fuel mods to go along with the SC and turbos.
Be careful not to over oil the K&N filter or it will foul up the MAF sensor giving you a check engine light (CEL). I would have gone with a dual stage foam filter like the TrueFlow I currently run instead of the gauze type material the K&N uses, the TF filters much better and flows better as well.
Feel free to browse our '95.5-'04 Taco forums for any other questions you may have.