warm/cold air intake, something thant made me think a bit. Options

[4-eyed-freek]

hey everyone! im a current student at UTI in chicago and last week my brakes teacher was lecturing on how stupid cold air intakes we and he kept calling them a warm air intakes, and he is right in a way..... BUT this week i started my basic engines class and my new teacher couldnt stress the inportance of a cai on a car because...(THIS IS WHAT HE SAID) if you think about it, your engine is running at somewhere around 212 in most cars. so the 100+ degree temp in your enigine bay that your cold air intake is taking in is actually colder than your internal engine thus meaning that the really warm air in you engine bay is actually cold air for your car.. so who is right?!?!?! i thought about this to myself and talked it over with other kids in the class and i got so many diff. answers. lets here what you guys think.

[delusionz]

short ram (no idea why its called ram, nothing gets rammed in at all) is the worst setup of the lot - its better at night, but its worse during the day

panel filter in the stock air box is an improvement, but the stock air box is still very restrictive

piping the airfilter to the front bumper is by far better, it improves engine response significantly and is a relatively easy option

the best option is moving the battery to the boot and making a custom air box to house your podfilter with a larger diameter duct piped to the front of your bumper giving the benefits of rammed cold air, and the shorter length piping from the throttlebody or turbo to the air filter.