VMP '13-'14 GT500 Stage 4 Pack - JLT, 2.4" pulley, idler, Twinjet 69, plugs, SCT X4 and Custom Tuning Package Includes: SCT X4 tuning deviceJLT 123 mm cold air intake2.4" supercharger pulley 90 mm idler pulley VMP Twinjet69 mm throttle body See below ...