Product Type: CSK Heavy Duty Clutch Springs. [EBC CSK193 Heavy Duty Clutch Springs]. 1x EBC Heavy Duty Spring Kit. Complete set of heat treated and tempered clutch steel coil springs or diaphragm springs giving 10-15% more clamp pressure than standard.
I didn't think my stock clutch slipped at all, but putting in heavier clutch springs did help acceleration and top speed, even before I changed sprockets