ATI PERFORMANCE SUPER DAMPER Harmonic Damper [ALUMINUM SHELL | 7.074 OD | 2 RING | TOTAL WEIGHT 5 LBS | INERTIA WEIGHT 3.4 LBS | STEEL HUB | 4.8 | 15% U/D | 7 RIB PULLEY] (Nissan 350Z & 370Z) : COLORADOSPEED - LATE MODEL DOMESTIC (AMERICAN MUSCLE) | IMPORT (EUROPEAN | SPORT COMPACT) AUTOMOTIVE PERFORMANCE PARTS