INNOVATORS WEST Harmonic Balancer [9% OVERDRIVE | DIAMETER 8.750 | WEIGHT 12.5 POUNDS] (2015-2021 Challenger & Charger 6.2L Hellcat & 2018-2021 Grand Cherokee Trackhawk) : COLORADOSPEED - LATE MODEL DOMESTIC (AMERICAN MUSCLE) | IMPORT (EUROPEAN | SPORT COMPACT) AUTOMOTIVE PERFORMANCE PARTS