This is the complete kit to turn your stock 2022-Current Polaris 850 boost into a fire breathing 9R Boost! Increased throttle response on the bottom end with more pull through the mid range and top end. Kit includes a complete 9R top end kit (No cores needed!)
900 Boost ECU Tuning Options-
- Send your ECU to BBA and we will reflash with your desired 900 Boost Tune (pump gas or race gas)
- Upgrade to the EZLYNK Tuning Device where you will have access to both pump gas and race gas tunes, diagostic options, powervalve relearn, wastegate relearn, and all vehicle parameter information.
Kit Contents:
OEM 9R Pistons
9R OEM Cylinder
9R High-Flow Y-Pipe
9R Powervalve Assembly
All Required Gaskets
SLP Billet Boost 9R Head
Indy Specialty Polaris E-VES alingment tool
*You will be required to send your ECU to BBA for the 900 ECU reflash
Highly recommended options:
-Fire N' Ice Performance Big Air Intake for Polaris Matryx
-Ibexx Hyper Velocity Intake (HVI)
-Boondocker Breath Right Air Intake
-Diamond S Boost silencer or SLP Boost silencer
*The 9R Boost kit does require the use of 50% race fuel (100LL or 110 Race gas) and 50% 91 Non Ethenol fuel
9R Boost Kit
Free clutch kit with 9R boost Kit or Carl's 900!





