http://www.jegs.com/webapp/wcs/stor...irect&categoryId=17665&parentCategoryId=10187 or have these things been around for awhile? please enlighten me
been out since like 1997...they have a matching intake that goes with them. A very nice but expensive upgrade.
Those might be the SVO heads which are pricey, and require the matching intake to go with it. If so, they've been around for a while.