Quote Originally Posted by Daox
Personally, I'd go with a smaller pipe diameter. If you have to match up to a MAF its one thing, but the 1st gen uses a MAP so you don't have to worry about that. I'd go with 2-2.25" piping myself. With 3" I'm quite sure you'll loose some low and midrange power. How much I can't say.
ChromeIntakes piping has another advantage (for me personally) over AEM - besides the price, it's the position of the cone. It looks like the cone on the ChromeIntakes tubing sits almost a foot higher above the ground... Which is very good for this state. Even though I'm going to use the hydroshield and the bypass valve, I still would rather have it higher than lower.

Quote Originally Posted by petrified.rabbit
The maf in the 09 aveo is 3" housing as well. it works out. its kind of "trumpeted" into the throttle body with the smoother transition coupler than just hard edged connection, but its like only 1/4" radius difference?
Rabbit, did you notice a big drop in power when you went with 3" piping? I don't think it would be very noticeable, I think I'm loosing more power right now by having a home-made SRI that's breathing only hot air under the hood. And even though it's 3" piping it all goes down to 2"-2.5" hole on the TB... So it will be still receiving the same amount of air it needs (or have more access to it) just it will be colder air than the engine bay air. That's my thinking. Could you guys correct me if I'm wrong?

One thing why I thought that AEM intake was better was because it was all one piece, but when I read up on AEM bypass valve I learned that I'd have to cut that piece to fit the bypass valve, so it would defeat the purpose for me. And the chromeintake tubing is already in two pieces, so I can just fit the much needed bypass valve instead of the coupling. Hope that makes sense.