Chris installs Comp's limiter locks (PN 5493; $71.95) in each of the four camshaft phasers (the actual limiters were installed by L&M before we started our project). The OEM phasers can advance or retard cam timing by as much as 50-60 degrees. With the larger cams, excessive timing, advance, or retard will no-doubt lead to severe piston-to-valve conflict. Limiters and locks reduce the authority of the phasers by 30 degrees, which thus lowers the maximum amount of movement to only 20 degrees. Any additional timing is commanded through manipulating the Coyote's Ti-VCT via SCT or other custom-tuning process. The limiters and locks essentially are a must for street Coyotes when cams are added.