ATI Super Damper Crank Pulley for 4B11 Evo X STMREVAMP (1) Engine Block Breather Fitting

(1) Engine Block Breather Fitting (VIB-16613)

50 60mm 55mm 84 836028-5002S 836000-0002 53mm 71mm 56 0

STM-EVO89-CC-STD-BR

(60) Titanium Pieces

ATI Super Damper Crank Pulley for 4B11 Evo X STMREVAMP (1) Engine Block Breather FittingThe ATI Super Damper for Evo X is available in two versions. The "Street" version offers a 3% under drive for improved dampening and increased power and is a direct OEM replacement. The "Race" version offers a larger diameter and no belt drives. Unlike unbalanced underdrive pulleys, which offer no protection to high performance engines, the ATI Super Damper provides balanced dampening of torsional crankshaft vibrations. The 3 external bolts allow for