Welcome to the site... but try searching first, there is exhaustive discussion on this issue.

my personal feeling is that even if it gets you an extra 10-20 hp, it's not worth it as, with a vehicle of the X's weight, you'll never feel it.

i have installed a cheaper AFE intake, however, and it DOES provide me with noticibly higher -- albeit slightly -- gas mileage: instead of about 16-17 at 80 mph, i now get around 18-20. makes difference during the course of a long drive!!

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MARC/CROSVS | UCLA Bruin, B.A. Econ, Aug 2004 | J.D., Thomas Jefferson School of Law, May 2008 -- MEMBER: California State Bar, December 4, 2008

2005 BMW 645 Cabrio | Black Sapphire Metallic, Ti trim | 6AT | fully loaded sans HUD

2000 Ford Mustang V6 | laser red on tan | 5-spd | track-prepped