300HP+ and racing supporting mods

Stage 6 Cams TD's Stage 6 Cams, which increase engine response and more HP in the mid range and up top. Adds HP at same boost level, as well as make the sled very responsive. Great for race sleds as well.

Tapp HD Billet Primary Clutch (easy to run, quiet clutch, more grip) New roller spiders delivers faster and smoother shifting all around the powerband. It also put more track HP down by reducing clutch slip. Note that this clutch isn't as quiet as...

JE Pistons set of 3 (11.0 compression stock turbo RACE application)

JE Pistons 8.0:1 set of three (Low compression for higher Max HP on pump gas) Much higher knock threshold for high boost application on Pump gas. Work with stock rods for trail/pump gas application at higher boost without knock, or Carrillo Rods for...

JE Pistons 9.0:1 set of three (Stock Compression Trail or Competition use for Turbo Upgrade

Fit's Arctic Cat 998 with STM 11.25" secondary EX (Bad Ass) Belt Line • Ultra-strong Aramid Fiber cord that can handle/carry more than 10,000 pounds of tension without stretching or breaking.• Higher strength compared to OEM and aftermarket...

This spring kit will support RPM's up to the 11k range. Best to use in conjunction with bucket & retainers. 

Turbo Dynamics 7075 Aluminum Chisels TSR championship edition (for 1" track 3/4 penetration) These chisels offer phonomenal traction for snow and frozen snow condition (works on rock dust as well) These chisel are ultra resistant for a snow racing...

This will fix the stock top gear bushing that gets worn out after some time.  Easy to install without special tools.

TD professional SaberTooth Snow Racing Aluminum alloy Chisel 2" height (50 pack)   For Race sleds only with very tall radiator protectors.  Recommended track height 1/2" to 1" tall lugs R rated 2 ply. Recommended amount of chisels for snow...

TD Mod stock quick spool billet turbocharger compressor upgrade for 1100 or 998 turbo sleds  (60HP+ gain 430HP) This is the perfect upgrade those who want to upgrade their stock turbocharger on the their 1100 turbo or 998 turbo snowmobile (F1100...

Adjustable TurboSmart Fuel pressure regulator KIT with Fuel gauge for 2017 to 2021 Yamaha Sidewinder and Thundercat ZR9000 as well as 1100T Suzuki engine. *please specify option  -It comes with a high quality TurboSmart adjustable fuel...

Turbo Dynamics exclusive, custom, lightweight forged Rods and Pistons made by Carrillo (no need to rebalance) Rated up to 600HP For Yamaha Sidewinder SRX ZR9000 Thundercat  Months in the making, working with Carrillo engineers and Turbo Dynamics...

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)...

  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...

 Super easy installation (plug and play) nothing to setup unless you want the advanced version with optional adjustments (only for TD flasher and Copitrail users)    This new advancement by GAP innovation for the Turbo Dynamics ECU...

998 turbo Carrillo forged Rods (we ran these to 600HP reliably in our outlaw yamaha sidewinder) Rated to 750HP by Carrillo For yamaha sidewinder SRX zr9000 thundercat  See video below. Fastest yamaha sidewinder in the world 180.7 mph in 1320 feet...

TD HD High RPM valve train kit (6 Custom buckets + STG6 valve springs and retainers) This kit will support RPM's up to the 11k range as well as virtually eliminating the chance to "spit" a shim on antilag or when hitting the high rpm rev limiter. This...