The tube is not kinked in anyway, and is wide enough to supply sufficient air. When you see the spigot thing that sits in the wing that the std air filter assembly has to A pull ALL it's air through then you'll see what a improvement the pipe is! Most of the required air will be pulled in from the engine bay; the purpose of the pipe is to push cooler air to the filter area, using a ram effect to attempt to get intake temperatures down.
