<font color='#000000'>It's not that hard, just get some plastic or aluminum tubing (4 or 5inch diameter) and put a K&N filter on the end. get some hose clamps and some round rubber peices and slap it together.</font>
<font color='#000000'>dude do not use plastic to make the intake. the plastic could get hot and start to smoke and then you would be pulling toxic smoke into your engine. here is a link to one of the best descriptions i have ever seen on making a custom cold air intake. it has a list of everything you need includeing part numbers and stuff. and its cheap to build.