ATI PERFORMANCE Serpentine Super Damper [OUTER DIAMETER 6.78 | WEIGHT 4.5 POUNDS | SHELL MATERIAL ALUMINUM | RIBS 6 | HUB MATERIAL ALUMINUM] (1991-1996 Corvette LT1 & LT4) : COLORADOSPEED - LATE MODEL DOMESTIC (AMERICAN MUSCLE) | IMPORT (EUROPEAN | SPORT COMPACT) AUTOMOTIVE PERFORMANCE PARTS