Performance Big Bore Ultimate Kit / Skidoo 911 Choose Elevation:Mid Elevation (6-9000 ft) 8 lbs lighter than the

8 lbs lighter than the stock muffler

or mountain

The added flow keeps a much more constant head temp with reduced hot spots

we had one goal: Maximum Style with a "Trail-Ready" Sound

Our Design features a center exit with 3" exhaust all the way through

Performance Big Bore Ultimate Kit / Skidoo 911 Choose Elevation:Mid Elevation (6-9000 ft) 8 lbs lighter than the911 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