Custom Intakes

In another thread some of you guys mentioned fabricating a custom intake to save money and create higher flow. So instead of taking that thread off topic I decided to make a new one. Did you do it yourself or go to a shop. What kind of materials are need? What was the diameter of your piping. And what about dual cia's I've seen it done before but I wondered the same things I just listed.

buy a filter...

go to home depot...

move battery to back...

drill big hole....

short ram cold air right thurr

so you didn't do any piping to move the filter away from the engine to get colder air?

so you didn't do any piping to move the filter away from the engine to get colder air?
yes new pipes!

home depot

it sounded more complicated than that

well not really, just takes time to drill hole and shit...

well do you use aluminum piping, what diameter

whatever diameter u want, and aluminum would be great...that black plastic thingy would also work