ATI PERFORMANCE SUPER DAMPER [ALUMINUM SHELL | 7.074 OD | 3 RING | WEIGHT 6.1 lbs | CRANK HUB STEEL | 6 GROOVE] (BMW 3.0T B58 I6) : COLORADOSPEED - LATE MODEL DOMESTIC (AMERICAN MUSCLE) | IMPORT (EUROPEAN | SPORT COMPACT) AUTOMOTIVE PERFORMANCE PARTS