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  1. REV-XP / XM Chassis - Mountain Sleds
    put mbrp standard stinger on my 2012 summit sp 600 ho etec and at WOT 90 percent of the time it will back fire and rpms will drop down to 6000 and then shoot back up. got about 300 kms with can on and now im going to take it off and put on stock. No engine light or anything like that but this...
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