- 2017 to 2021+ A/C ZR9000 Thundercat
- Clutch upgrades (drivetrain)
- STM tuner Secondary clutch (11.25") for High HP application
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 does not come with an Helix or Spring.
Must Purchase Secondary spring and Secondary Helix
Customers Also Viewed
Multi map bundle for 2017 to 2020 998 turbo 200-350HP Ecotrail Powertrail, Max 17 Max Spool 17 - 19 - 20 and Race
Turbo Dynamics / Gap 500HP capable bolt on turbo kit for 2017-2021+ 998 turbo sleds thundercat sidewinder zr9000