How about getting a K&N air filter? Pro's or con's to this idea? 'Tis prolly one of the most cost-effective (bang/buck ratio) mods available to modern man. Doesn't cost much, and doesn't gain much (typically). I di- scerned a noticeable "entension" on the top end, around 200rpm or so; the engine could clearly "breathe" a little better on the top end. -RDH