Carls Performance 900 Big Bore Boost Kit

Carl’s 900 Big Bore Kit! 240 HP based on internal dyno testing.

This isn’t just any drop-on top end; it’s a powerhouse engineered from the same porting used by world champion hill climb racers. Transform your ordinary 850 boost sled into a full mod motor that roars with acceleration and power, ready to conquer any backcountry challenge.

Each kit is meticulously hand ported to perfection, crafted to maximize your sled’s performance and give you the edge you crave. And the best part? You don’t need to worry about core parts – this complete, brand-new kit bolts right on, turning your snow machine into the ultimate backcountry weapon without hassle.

With an included ECU reflash and requirement to run on a powerful 50/50 mix of 94 octane and 100LL, you’ll feel the adrenaline surge as soon as you’re on the throttle. While some setup is required for power valve and wastegate relearning, the Ez-lynk tool simplifies this process, or you can simply have your local dealer handle it for you.

Kit contents

• Carl’s Cycle hand ported 9r Cylinder (Ported for boost applications)
• Slp 9r head
• Oem Pistons (rings, circlips and wristpins)
• 9r high flow y-pipe
• All required gaskets
• 9r complete power valve assembly
• Spark Plugs
• 900 Boost Tuning – Thru Ez-Lynk – 50/50 fuel requirements – 94/100LL