Clutch Spring Kit Developed with and to enhance performance of OEM pressure plates as well as Hinson clutch baskets, inner hubs and pressure plates, Made out of high-temperature steel to outlast anything else on the market, Developed with and to enhance performance of OEM pressure plates as well as Hinson clutch baskets, inner hubs and pressure plates, Highly resistant to losing strength due to high heat from 4-strokes, Made out of high-temperature steel to outlast anything else on the market, The correct stiffness to handle high horsepower engines, Highly resistant to losing strength due to high heat from 4-strokes, Provides optimum hook-up with minimum heat build-up, The correct stiffness to handle high-horsepower engines, Made in the U.S.A., Provides optimum hook-up with minimum heat buildup, Made in the U.S.A.