Air intake mod seen somewhere.

Your stock airbox is already cold air (it's pulling air from outside the engine bay). If it's ram air you want then a home job is easy. You can run a dryer hose inside of your fenderwell (you'll need 2 clamps as well) down to the fog light opening --or-- you can get a scoop from some like March and mount that scoop below your airdam. Don't forget to toss your stock paper airfilter and put in a K&N. You can also get the whole Ram air kit from March. It includes a new airbox, K&N conical filter, the duct that rons from the new airbox to the ram scoop, the scoop itself, instructions and hardware, and one K&N filter charger kit. It's not a bad deal. Just remember to stop short of the burbs when parking or "rrrrrrrrrrrrrrip".

if you choose to go the homemade route, i would try to use ducting that does not absorb heat - or your cool air charge will become a bit warmer.

i personally think the stock set up is pretty good.

good luck.