ATI PERFORMANCE Serpentine Super Damper [OUTER DIAMETER 6.78 (10% UD) | WEIGHT 4.5 POUNDS | SHELL MATERIAL ALUMINUM | RIBS 6 | 4 RIB REAR PULLEY 4 RIB DRY SUMP | HUB MATERIAL STEEL] (1997-2013 Corvette LS1, LS6, LS2 & LS3 & 2008-2009 G8) : COLORADOSPEED - LATE MODEL DOMESTIC (AMERICAN MUSCLE) | IMPORT (EUROPEAN | SPORT COMPACT) AUTOMOTIVE PERFORMANCE PARTS