Lets see your intakes

[motorheadwannab]

The airaid has a slight bulge it looks like going around the corner, most likely to help the air move easier without constricting it around the turn, just my guess though. If you look at all of the others though they are just cylindrical tubes.

My only concern with an ebay tube is that it appears they all have a sharp turn then straighten out. I'm worried that will cause a severe constriction...if only i had a pipe bender