Upgrade your stock coils with our High Output replacement coils for the 2005+ 5.7, 6.1, 6.2 and 6.4 Hemi applications! We found gains when installing these on late model applications, and you can expect the same. Better throttle response, improved cold starts, and increased power output are the result of high efficiency windings that make use of better design and materials than the OEM units. The stock replacement design makes them a quick and easy installation on most applications.