If you dont search around before asking questions, people are really going to get on your case. The most popular is the K&N with MAF adapter. Go to ajusa.com and buy a K&N filter. The product number is RU-3530 for the filter. Then go to spmotorsports.com and get a MAF Adapter. (it should be in the intake section for the tour) Then after you get it all, make a heatsheild. The heatsheild is a box type construction that surrounds the filter on all sides (except top and where the airflow comesin from the fender) so engine heat can't get to it. Again, try searching before you ask a question. Most info you'll want to know has been asked dozens of times. Welcome to CEG.