Clutch upgrades (drivetrain)

Tapp HD Billet Primary Clutch (easy to run, quiet clutch, more grip) This clutch runs extremely quiet (no rattling). It also put more track HP down by reducing clutch slip. It also significantly increases belt life. One of the first thing we noticed...

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)...

PLEASE NOTE THAT THIS ITEM WILL NOT SHIP OUTSIDE OF CANADA DUE TO FREIGHT COST.  Sidewinder/ZR9000 heavy duty  Belly Pan guard with Turbo Dynamics lettering This is the newer version of the original belly pan. It offers an easier installation...

This Primary spring is highly recommended with users who own or looking to purchase the Tornado clutch kits.   Thundercat / ZR9000 

  GBoost Bad Ass Drive Belt for Arctic Cat 998 turbo ( Thundercat, ZR9000, King Cat )   DBTX112EX – EXTREME DUTY DRIVE BELT – ARCTIC CAT Fitment: ARCTIC CAT Snowmobile 2017-2020 Thundercat ZR / XF / M9000 All...

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

Dalton Adjustable clutch Weights 2017-2021+ Arctic Cat ZR9000 Thundercat   for Race only QA2-89G 89G-96G These are the best weights available for the 998 turbo snowmobiles. They are long lasting, a good investment considering they give you...

Dalton Adjustable clutch Weights 2017-2020 Arctic Cat ZR9000 Thundercat   for STG6 Max 20 to Race  (320-340HP) QA2-84G 84G-91G These are the best weights available for the 998 turbo snowmobiles. They are long lasting, a good investment...

Dalton Adjustable clutch Weights 2017-2020 Arctic Cat ZR9000 Thundercat  Max20 to Race and STG6 pump gas maps (300HP-330HP) QA2-81G 81G-88G These are the best weights available for the 998 turbo snowmobiles.  They are long lasting, a good...

Dalton Adjustable clutch Weights 2017-2020 Arctic Cat ZR9000 Thundercat  Powertrail, Max17, Max spool 17 Max Spool 19 and Max20 (265HP-300HP) QA2-76G These are the best weights available for the 998 turbo snowmobiles. They are long lasting, a good...

Dalton Adjustable clutch Weights 2017-2020 Arctic Cat ZR9000 Thundercat  Ecotrail to Powertrail CAI (230-275HP) QA2-73G QA2-73G These are the best weights available for the 998 turbo snowmobiles. They are long lasting, a good investment...

Dalton Adjustable clutch Weights 2017-2020 Arctic Cat ZR9000 Thundercat  Stock to Ecotrail 180-250hp QA2-70 70G-77G These are the best weights available for the 998 turbo snowmobiles. They are long lasting, a good investment considering they give...