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ultra xcr pipes
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  1. Polaris
    I have an Ultra 680, in a beat up xlt chassis with a strong engine and an extra engine that needs 2 cylinders and Pistons. I've gotten tired of the stock power, and I can't pipe it due to the 88 octane fuel limit here. I know the xcr and ultra 97-98s share the same bottom end, and I want to get...
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