Dude...get an AFE drop in filter from Micah (pxracing@aol.com). You will feel a difference w/out any added noise/moosing issues. I have one and highly recommend it. PM me if you have any questions -
pxracing@aol.com
Also..that drop in AFE is designed for the 3.8 (?) Ford Mustang engine, so it flows plenty for our cars!