Pulsar XT is an innovative inline module engineered to keep your factory PCM untouched, with no PCM swap or unlock required. This is the most advanced and easiest way to disable your V8's MDS system to eliminate 4-cylinder mode and keep that Hemi running on all 8, all the time. The built in throttle pedal sensitivity control also helps you fine tune your pedal feel to eliminate throttle lag and make your Hemi drive like you want it too