Nismo big operating cylinder 30620-RS580 genuine from Japan, brand new still unopened. Nismo has developed an oversized slave cylinder to reduce the pedal load when using a sports clutch, improve half-clutch operating characteristics and provide proper clutch connection positioning, the size of the operating cylinder has been increased from 3/4 inch (ø19.05mm) to 13/16 inch (ø20.64mm). This reduces pedal pressure by as much as 14% compared to a standard part. Suits: ecr33 rb25det, hnr32 rb20det, enr33 rb25de, enr34 rb25de, bnr32 rb26dett ~'93/2 $100 located mill park Vic Text/call 0401350991