Recommendation for YZF 450 Silencer that will pass the blow test

Need some recommendation for a YZF 450 Silencer that will pass/meet the decible requirements in California.Was gonna get the Pro Billet Insert but apparently that thing will blow about 100. any recommendations appreciated.

I used the Pro-moto billet insert and was tested at a local event, it only tested at 88db.

www.quietiscool.com they claim 95dB in a stock muffler. I have one in my 03WR and like it... :thumbsup:

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