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polaris engine conversion

  1. 96 polaris engine upgrade/exhaust upgrade

    ATV Performance Modifications
    I have a 96 polaris trailboss 2 stroke 250 and i wanted to know could i convert it to a 300 without ruining it if so how? just put in a 300 cylinder head?And i also wanted to know does anybody make a bigger chamber for my quad? i want to maximize horsepower and i dont think its getting enough...
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