This is the complete kit to turn your stock 2022-24 Polaris 850 boost into a fire breathing 900 Boost!  Increased throttle response on the bottom end with more pull through the mid range and top end.  Kit includes a complete Carl's 900 kit (No cores needed!) and custom 900 Boost ECU reflash.
 
Kit Contents:
900 Pistons
900 Ported Cylinder
Hi Flow Y-Pipe
Matched Powervalve Assembly
All Needed Gaskets
SLP Head with high elevation dome (Low elevation dome available)
*You will be required to send your ECU to BBA for the 900 ECU reflash
 
Highly recommended options:
-Fire N Ice Bigger air intakes with Boost intake vent. ($407)
-Burandt Adjustible Boost clutch kit. ($550)
-Diamond S Boost silencer. ($881) or Slp Boost silencer. ($400) 
 
*The Carls 900 Boost kit does require the use of 50% race fuel (100LL or 110 Race gas) and 50% 91 Non Ehtanol fuel