ATI Performance SUPER DAMPER Harmonic Damper [OUTER DIAMETER 7.48 17% OD | SHELL MATERIAL ALUM | RIBS 6] (2005-2010 CHRYSLER 6.1L & 426 HEMI) : COLORADOSPEED - LATE MODEL DOMESTIC (AMERICAN MUSCLE) | IMPORT (EUROPEAN | SPORT COMPACT) AUTOMOTIVE PERFORMANCE PARTS