I'm in the market for a quiet silencer fitted with a spark arrestor to be able to ride some local OHV areas where they're required. So far I've found two: FMF turbinecore 2 Q and the PC Nature Friendly SY00250-SA My questions are these: Does anyone have any experience with these pipes? Which is the quietest? Which would work better with an FMF fatty pipe? Are there any others I should consider? Basically I'm looking for something not too expensive, fitted with a spark arrestor, and that's as quiet as possible.