New from Professional Products [(323) 779-2020; www.professional-products.com] is this 4.6-to-5.4 intake adapter kit. This kit will allow you to install PP’s own Two-Valve intake manifold onto ’96-to-’04 5.4 Two-Valve engines. PP also promises a new $200 dual 64mm throttle body for the throttle-by-wire Three-Valve 4.6.