ACT Heavy Duty Performance Street Sprung Clutch Kit | (NS1-HDSS)ACT Heavy Duty Performance Street Sprung Clutch Kit Part #: NS1 HDSS Overview The ACT Heavy Duty Performance Street Sprung Clutch Kit is designed to deliver reliable, high performance engagement for drivers seeking enhanced durability and consistent power transfer. Crafted for street driven vehicles that demand a balance of performance and everyday usability, this clutch kit is ideal for enthusiasts who push their vehicles beyond stock capabilities