The COMP Cams Phaser Limiter Kit (Part Number: 5493CPG) is engineered for Ford 5.0L Coyote V8 engines, particularly in 2011-2017 Mustang GT models. This kit restricts the cam phasing to 20 crank degrees (10 cam degrees), allowing the use of more aggressive aftermarket camshafts without risking piston-to-valve clearance issues. By maintaining precise control over intake and exhaust centerlines, it enables the benefits of Variable Valve Timing (VVT) while accommodating performance enhancements. Installation requires custom tuning to adjust the cam phasing ECU control tables for optimal results.