S&B Intake
No personal experience with it on the JK yet, but I just placed one on order and am currently waiting for it in the mail...I've heard good reviews on them from other vehicles + I like the looks of it and the fact that it comes sealed in a box as compared to the other CAIs with an open / exposed element....I will let you know how is performs once I install it....

Based on the manufactorers info below...It filters close to stock, but the added benefit is the Flow rate..The intake flows ~ 63% better then stock...
From the website
http://www. sbfilters.com/pdf/iso_5011_2917_ISO%205011%20Test%20Results%20for%20 75-5025.pdf
Airflow Rating: Flows 63.4% Better than the OE induction system at Vehicle's Max Rated Flow (268 cfm)
Efficiency Rating: 99.51% Efficient - ISO Coarse Test Dust


