These underdrive pulleys work for 04-08 Mazda RX8 1.3L Renesis 13B-MSP. New belts part number K050316 and K040292. Include:Crank pulley,Water pump pulley,Alternator pulley. Weight:0.6KG. CNC-machined from 6061-T6 forged aluminum.Hardness more than 90 degrees,Durability and safety are more guarantee. These pulleys increase power by reducing the parasitic drag caused by factory accessory pulleys. Our lightweight pulleys reduce rotating weight to maximize efficiency, which nets more horsepower at the wheels. Color:Silver.Other colors please tell us. |