I bet its normal air intake noise (induction howl). My 3L does it, and so does my brother's stock Cougar Duratec (although not nearly as loudly, heh). Especially if you have an open filter - that will make it more noticeable.


1998 Silver Frost SVT Contour born on...8/28/01[/i]
American Iron Shootout Radial Tire 2 Class Champion, Cecil County Dragway April 20, 2002