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DN3-XTSS kit features an Xtreme pressure plate for the most demanding driver
MB1-HDG6 kit features ACT's most popular Heavy Duty pressure plate
Black Powder Coated Finish
T3RS-F12 Mod-Twin 10
spring-centered race disc
BBK 85-97 GM Truck 305 350 Underdrive Pulley Kit - Lightweight CNC Billet Aluminum (3pc) (1598) _Under_The_Hood DN3-XTSS kit features an XtremeInstall a set of BBK performance underdrive pulleys and see an average of 8 15 additional horsepower over the stock pulleys. Under drive pulleys increase engine output by reducing the draw of the engines accessories by slowing them down and reducing the HP they use. Additional and significant performance improvements can be seen by reducing the weight of the pulley versus the original pulley which is why we recommend the BBK CNC Machined billet