Tenzo and Weapon R make junk mostly. If you're heart is set on an intake I would go with AEM, or PWJDM. Alot of people have had problems with a cold air intake, but mines been on for a year and a half now and I've not had one issue. You can always get a bypass valve, or just buy a short ram.

Otherwise, just dropping a K&N into the stock airbox will give you roughly the same performance gains.