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  1. Polaris Predator
    I have a 2003 Predator 500 with a CFM airbox and an HMF exhaust and headpipe. Does anyone know what jet i should be using? HMF wants a 155 for its exhaust but when I put my CFM airbox on without an exhaust it ran real lean. I'm a bit new to the predator platform and any jetting tips would be...
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