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  1. General
    Hey everyone, I have a 1998 pantera 580 EFI with a blown motor, got the sled off a family member, they stripped it of the motor and efi components, it is a 2 up sled with a good track and overall in good shape, I have a 1997 zrt800 that needs a track and other various things, I was gonna pull...
  2. 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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