Adapt Clutch Kit - Arctic Cat acceleration and track speed gains, Lightning-quick back shift (downshift), Holds RPM much factory, Secondary Smooth Shift Teflon washers included for buttery smooth secondary shifts on standard kits, Torsion spring conversion upgrade EVEN MORE all-around performance and may increase top speed, Much smoother and better working reverse on standard style clutch kits, Clutch kits are easily adjustable for fine-tuning, Torsion kit ONLY: Reverse on 2 stroke models may not work under high load situations (backing up a snow-covered hill), but will work fine in low load situations (off the trailer, out of the garage, etc.)., Includes setup guidelines for your specific model and different modifications we