I had a few quick questions

what type of tubing do I need for my intake? I plan on doing a ram air coming from the lower part of the bumper, near the fog light. I need something flexible, so it needs to be some type of plastic, but i was wondering if there was a certain type that works best, or that is recomended. And I also need to know what type of tubing I should use for the 30 degree tube comig from the MAF and to the cone filter (in the airbox). (basically im asking - what material is a normal aftermarket intake tube made out of?)