Either aFe, Conforti, or K&N. I've heard that if you can find a good used one on ebay then that's the best way to go. Other wise your looking at $220 for the K&N and $340-360s for the conforti or aFe. I'm personaly going to be getting the K&N for mine in a couple of days.
UUC TSE3 | ST V1 coilovers | TMS sways | CSL replicas 18"x8.5" | ATE slotted rotors w/ Axxis USP | Clear lights all around