cold air intake

Hello everyone. I was thinking about purchasing a cold air intake for my 92 ford ranger 4.0L. I've always been skeptical as to how much a Cold air intake improves performance, but for a bit of extra sound quality, it would be worth it. Do any of you guys notice a sound difference with one...

A while ago, my stock air box fell apart on me, and I've been using that K&N filter that fits right on to the throttle body as a temp until I can find a better solution. Unfortunately, any stock units are either smashed to pieces, or just plain missing on the trucks at my local junkyard. And I...

So, a few years ago when i first got my truck and started upgrading it, one of the first things i upgraded was the intake to a aftermarket "cold air intake"... Now that ive been working on it for a few years and know a heck of a lot more, I've been fixing a few things i screwed up....the CAI...