The PUSH TURBO clutch kit will help increase your belt life while decreasing belt temperature. It will also significantly increase your back shifting; back shifting is when you let off on the gas it will shift down into basically a lower gear ratio, which will make you accelerate faster. It helps keep the engine in peak power. Our springs are high quality springs that do not sack out when they reach operating temperatures. Our primary spring has a slightly different ratio than the stock spring, which helps it maintain RPM better, the secondary spring has a lot more belt grip and significantly higher wind up which is key for better back shifting, preventing the belt from slipping. The clutch kit also comes with complete stainless steel and brass hardware. This allows you to dial in the RPM perfectly, (8400to 8600 rpm) no matter what tire size you run. This clutch kit is a must for any dune riding.