ATI PERFORMANCE SUPER DAMPER Harmonic Damper [OUTER DIAMETER 7.48 | WEIGHT (LESS HUB) 7.3 LBS | SHELL MATERIAL ALUM | GROOVES 6 | HUB MATERIAL STEEL] (2016 Camaro SS & ZL1 & Cadillac CTS-V) : COLORADOSPEED - LATE MODEL DOMESTIC (AMERICAN MUSCLE) | IMPORT (EUROPEAN | SPORT COMPACT) AUTOMOTIVE PERFORMANCE PARTS