Just received and installed the Steeda CAI. Packaging was good, manufacturing was good, instrustions good. I would have preferred that all pictures be printed on the same page as the item description - it was a little annoying to have to read the instruction, and then flip the page over to see the picture. Also, the labeling on the fasteners could have been a little bit better. We figured it out without too much trouble, but that's the thing that is the difference between a 9.5 and a 10, you know?
Took about 1hour 20minutes with the help of my 9y/o. Stuff came out as detailed, stuff went in as detailed. Pretty straight forward, and anyone with intermediate skills could pull it off alone. Not really a beginner mod without help - it's the little things like properly removing clips, hoses, etc, that could be really expensive if you don't know how to do them.
The intake is LOUD and WOT. Really loud. I haven't noticed too much of a change in the butt dyno, it sounds really cool. gas mileage is dropping dramatically because the thing really comes alive at about 3500rpm and efficiency isn't so good when you're riding around WOT. You know how it is. It gets intusive after 6000rpm, though. I can't help but giggle a little every time I get on the throtte. hehe.
All in all, very nice product, and a good mod if you want "because racecar". I'm an old-guy, probably too old for this, but WTH?