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  1. Polaris Slingshot Problems and Issues
    Ive done all the standard upgrades... Injen Cold Air, 1320 V2 Header, 1320 V2 Exhaust with extra quiet baffle and DDM fuel rail... I plan on having the MEFI tune done as well. My question is, as soon as I installed the V2 Exhaust, I started having backfiring on the decel... with the extra quiet...
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