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  1. Wtb psi twin pipes

    Parts and Accessories
    Wtb psi twin pipes with stingers, must fit arctic cat 580 engines, text 507-828-8694
  2. 550 580 swap

    Arctic Cat
    I'm relatively new to this forum, I was wondering how difficult it would be to swap over a 580 top end *single exhaust port* to my 550 lower, also how much performance would this gain. Reliability? Clutching?
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