Dodge Challenger Mopar Drag Pak At the heart of the new Drag Pak is the latest evolution of the supercharged 354-cubic-inch Gen-III HEMI V-8 engine, based on the same power plant that won the 2018 NHRA Factory Stock Showdown (FSS) and NMCA Factory Supercar championships. Numerous enhancements include an all-new 3.0-liter Whipple twin-screw supercharger, upgraded forged internals, new front accessory drive and a new fabricated aluminum ice tank with a clear lid that cools the supercharger intercooler. The engine combination has been fully validated by Mopar engineers on the dyno, as well as the drag strip, and is approved for the NHRA FSS and NMCA classes. A unique, serialized, red and chrome Drag Pak badge sits atop the machined aluminum supercharger cover. Also under the aluminum hood, enthusiasts will see a nod to past 1970-1974 'Cuda and Challenger heritage models, with a special red and chrome radiator support "fender tag" adorned with the silhouette of the Challenger, stating the series number, the vehicle code, axle ratio and engine designation - all unique to the Drag Pak. Newly designed suspension provides a leg up on the competition The all-new, four-link rear suspension is engineered to launch hard, quickly decimate the 60-foot elapsed times and stay planted all the way down the quarter-mile. A new geometry setup with longer control arms increases the length of the rear swing arm, allowing better anti-squat control and increasing stability. It also incorporates a wishbone link for lateral control (replacing a Panhard bar in prior models) and a larger-diameter anti-roll bar (250 percent stiffer than prior models).