The COMP Cams Cam Phaser Limiter Kit (Part Number: 5761) is engineered for Chrysler 6.4L HEMI engines, including models like the Dodge Charger, Challenger, and Jeep Grand Cherokee SRT. This kit restricts the range of cam timing movement to 14 degrees, providing the necessary valve clearance for more aggressive aftermarket camshafts with tighter lobe separations, all while retaining the benefits of Variable Valve Timing (VVT) technology. By limiting the maximum cam phasing, it ensures piston-to-valve clearance when using larger cam profiles, resulting in significant upper-RPM gains without sacrificing bottom-end or mid-range performance. The kit includes the phaser limiter, a limiter tool, and installation instructions. Please note that custom tuning of the engine's computer is required after installation to adjust the cam phasing ECU control tables accordingly.