Clutch upgrades (drivetrain)

DMC top gear fix / upgrade (heavy duty) Sidewinder Thundercat zr9000 998 turbo 2017-2021+ This fixes the Top gear issue (more lubrication, more support, prevents issues with the driveshaft as well) Available in three sizes 21T (stock sidewinder gear)...

STM tuner helix (specify application, only for STM secondary)

STM tuner Secondary clutch (11.25") for High HP application. Much better belt durability much better performance both on trail and at race track. BOTH STM clutches are on all our Pro mods and Pro stock turbo race sleds.   This secondary clutch...