TSP CNC Head Insert KTM/Husky/GasGas 300cc XC/SX, TX, EX TBI Models acumen Polaris Sportsman 550 X2 :

Polaris Sportsman 550 X2 : 2011-2014

you want to go the place others can't - deep in the mud

2020 - FE 350S

Go for a Full Cab Enclosure

Honda XL500S 1979 to 1981

TSP CNC Head Insert KTM/Husky/GasGas 300cc XC/SX, TX, EX TBI Models acumen Polaris Sportsman 550 X2 :This head insert features an improved combustion chamber design that gives more performance throughout the rev range as well as reduced risk of detonation. This insert will fit 2023+ KTM and Husky 300cc TBI models with the stock head or upgraded TSP billet head. This CNC machined TSP head insert fits KTM 300 SX & XC models and Husky 300 TX i models with the new 300 TBI (Throttle body injection) engine, and fits into the stock cylinder head outer part.