Nissan 370Z Forum - View Single Post - How loud is your aftermarket exhaust? A call for decibels

spearfish25 · 10-10-2009, 07:33 AM

Umm, yeah. Despite my readings being from a muffler delete, I think we would fail miserably. The microphone has to be 20 INCHES from the exhaust outlet. That 96dB was from about 300 feet away (watch the video again). It's probably 130dB at the tips (all I know is I did't want my ears anywhere near that close when I had the muffler off). Even with just the Stillen CBE now, I think I'd still fail to meet those guidelines.

Hell, I bet engine noise alone (forget the exhaust) would be over 95dB at 20 inches from the tips.

10-10-2009, 07:33 AM	#31 (permalink)
spearfish25 A True Z Fanatic Join Date: Mar 2009 Location: Naples, FL Posts: 4,117 Drives: to work Rep Power: 1856	Umm, yeah. Despite my readings being from a muffler delete, I think we would fail miserably. The microphone has to be 20 INCHES from the exhaust outlet. That 96dB was from about 300 feet away (watch the video again). It's probably 130dB at the tips (all I know is I did't want my ears anywhere near that close when I had the muffler off). Even with just the Stillen CBE now, I think I'd still fail to meet those guidelines. Hell, I bet engine noise alone (forget the exhaust) would be over 95dB at 20 inches from the tips. Last edited by spearfish25; 10-10-2009 at 07:39 AM.