Exhaust with Spark Arrestor YZ450F

Does anyone know which exhaust manufacture has the lowest DB rating with a Spark Arrestor?

Leo Vince has a system that they are claiming to be at 94dB and I think the FMF Q4 is claiming 94 also. Match the Q4 with the mega bomb header and you should have a pretty quiet ride. Quiet is good. :thumbsup:


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