Feature●Billet Design, Not Stamped Steel or Welded for Increased Accuracy●Tighter fit on Crankshaft to Prevent Movement for Better Repeatability●Required for Higher RPM Engine Builds - Plug & Play●Extends RPM range compared to stock & Aftermarket replacements●Developed to exceed quality & signal strength of 2013 Cobra Jet Program ( M-12A227-CJ13 )Description Fits: 2011-2019 5.0L Ti-VCT Coyote engines ALL Tested by Team MMR to 3500+HP and 10,000rpm!