including Turbo-S

Fits 2017-Up Arctic Cat 9000 & Yamaha Sidewinder Models

As a longtime technical partner with Dynojet

Boost your power and improve air flow with this modification for optimal results

Rapid RPM adjustment mechanisms that directly replaces the stock locking-nuts on SKI-DOO TRA Series centrifugal snowmobile clutch clickerbolts

Performance Big Bore Ultimate Kit / Skidoo 911 Category_Default Category/SXS/Polaris RZR/Ranger 900 '13-Up including Turbo-S911 big bore top end kit fits all 2017+ 850 E TEC models 190hp on pump gas fuel and 200 hp on 110 octane fuel Perfect for the trail rider or mountain rider looking for more power Huge mid range and torque gain! Complete kit with everything you need to go from 850 to 911. Kit includes fuel module, pipe, y pipe, pistons, big bore cylinders, stock head mod & a stage 2 clutch kit. Turnaround time can vary from 1 15 business days for this kit depending on