To improve clutch life and holding ability, the clutch center was machined with an additional steel and one more fiber plate for a total of 15 clutch plates. The stock plates were replaced with clutches that have more surface area, increasing the clutch hookup. Barnett clutch springs were used to increase the clutch spring tension. The added clutch grip to the engine wears out the stock basket cushions. We upgraded with a Hinson clutch basket. The Hinson billet basket is stronger than stock and is rebuildable. Even with Hinson parts basket cushions wear out; we suggest you make cushion replacement part of your season prep even if you have a stock clutch.