Hi guys I was wondering if anyone knew the decibel reading of a 336 twin 502 with silent thunder exhaust? My father is going to court tomorrow to fight a ticket and we can find anything that shows what the stock reading is.. Any help will be great! Thank you!

http://www.offshoreonly.com/forums/f...7-decibel.html

I believe they are around 90-92 at idle. Link was a 357 which more than likely had twin 502s, not sure if there is a difference is readings with the silent thunder swim platform vs silent thunder box which the 336s have. As with any speeding ticket, if they did a decibel reading using a device always ask that they produce documentation of the last time the device calibrated. Burden of Proof is on them that you were over the decibel limit, you just need to create doubt in their proof.

will test my sonic this summer just for curiosity! my 35-7 tested was a bumped 454 so it might have increased the sound meter!