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  1. Big Gun power box best tune on a 570/ studs?

    ATV Performance Modifications
    hey ive been on here a while and other forums.. was looking and couldnt find any info on my bike so i decided to ask about it. i have a 2017 sportsman 570 that i picked up for a reasonable price around xmas. it has the big gun full exhaust and power box, however i did not get any instructions...
  2. power commander vs big gun tfi power box

    ATV Performance Modifications
    I have a 2011 polaris 850 browning edition and plan on putting the big gun eco series slip on pipe. Any suggestions on which I should get and why? Im leaning towards the big gun due to price and ease of install.
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