MagChargr for 5.7 and 6.1 Hemi. Covers Charger, Challenger, Chrysler 300, Jeep with 5.7 and 6.1 Hemi Ten minutes to bolt on 18.3 Horsepower and 14.8 Ft Lbs of torque (And did we mention better fuel economy and reduced pollutants?) MAGChargr™ is 50 State Legal A true bolt on EVERYONE will benefit from ! Every Hemi owner should have one ! MAGChargr™ products use patented technologies to alter the surface tension and viscosity of fuels to facilitate improved fuel atomization. Improved fuel atomization enables the fine droplets of fuel to be sprayed into the combustion chamber to be smaller in physical size, resulting in a greater proportion of the fuel to be exposed to air during the ignition cycle. The result is that the micro droplets of fuel can burn more rapidly and completely, increasing power, reducing emissions, and increasing fuel economy. MAGChargr™ is developed or under development for many light duty passenger vehicles and trucks. MAGChargr™ is ideal for fleet managers and directors seeking bottom line improvement in fuel economy for the vehicles under their control. Proven by Research Evaluated by the RAND Corporation and our ongoing development partner, Temple University, has published research internationally *** Click here to see instructional video and to get more technical data***