Cheap Mod?

[highrever]

I have a 88 Acura Integra with the factory 1.6L. I was wondering what some of the cheapest mods would be to increase horsepower?

[shawn1]

If you want real cheap(free), you could just cut your factory airbox for less restriction. If you want to spend a little money just get you a K&N filter and connect it to the factory tubing. Maybe later on you can get you a ram air or a cold air intake for a little more. Headers are a good deal for the money horsepower wise.