I just bought a velocity stack from abnormally aspirated because people talk about it like its gold. Anyway, I don't know what it is. What is it?

makes more airflow through so your car can flow a little better.

that sits between the MAF and your airbox.

Here is a picture of the VS, its the metal tube you see in airbox. Install time is about 30 minutes with a heat gun. You can see where several ribs in the box have been sanded down so the VS can fit. It's a snug fit.

<img src="http://pictureposter.audiworld.com/38881/mafvelstackinstalled.jpg">

when removing the MAF screen so it may not be a very good one. I've never personally seen one, though.

The Akimoto Funnel Ram IV I've read is one of the best cone filters you can buy and has an integrated VS.