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2019 sportsman 850 dual exhaust, 30" silverbacks
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hey, new to the fourms but im looking for some opinions on the best tune or tuner with the most results. i have a 19 sportsman 850 with a custom dual exhaust based off the rjwc system so i would like to run 91 oct any feedback would be great
 

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Chk out RVSPerformance!!
 
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