ATI Performance Serpentine Super Damper [STEEL SHELL W/ STEEL HUB | 7.530 OD | 15 POUNDS | 8 RIB] (2006-2010 Chevrolet Duramax Diesel 6.6L) : COLORADOSPEED - LATE MODEL DOMESTIC (AMERICAN MUSCLE) | IMPORT (EUROPEAN | SPORT COMPACT) AUTOMOTIVE PERFORMANCE PARTS