Don't know the decibel level, but my guess is less than the max allowed at Laguna. The RE Diablos might sound loud from inside, but from 50 feet away or whatever the distance Laguna measures the sound, it's not going to be loud.
It's no Harley Davidson.
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///M Coupe: RPI Scoop, OE Strut, CDV, Volk RE30, SS Brake Lines, Stromung Exhaust
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