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Db noise level

#1 tony2154

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Posted 26 September 2011 - 01:42 PM

Afternoon people, just to make you all aware, I was stopped by a policeman in Plymouth this morning, for having a noisy exhaust. I was on my way back from the school run! It’s a brand new Cobra Cat-Back resonated exhaust that was fitted a few weeks ago. Cheeky sod pulled onto my drive and proceeded to get his Db reader out and asked me to rev to 4000rpm and took a reading, and then showed me, it read 120Db, I’ve now discovered the limit set by the constabulary is 90 Db. I was a bit shocked really, my old TVR used to be louder!! Anyway spoke to Alan Jeffery's who promptly spoke to Cobra. Hopefully all will be sorted soon.

#2 ScoUK

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Posted 26 September 2011 - 02:43 PM

120dB that's rediculously loud for an exhaust!

--
Al

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#3 rig-pig

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Posted 26 September 2011 - 03:06 PM

wow thats nice and loud but in sure it's only 3000rpm they are meant to test it at ?? could be wrong tho

CRAIG
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#4 Ric

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Posted 29 September 2011 - 09:53 PM

pretty sure there is no dB limit set by law ? plus how was it tested ? if it was in a built up area the sound will be amplified and thus the test unsound. As above 120dB is crazy loud. Would love to know the outcome on this

#5 MonkiP1

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Posted 04 October 2011 - 07:45 PM

I Drove past a few coppers on the weekend going to and from Plymouth, Was not stopped but then sometimes the music was to loud to hear, I have a Blitz nur spec fyi.

Hope something can be done about your exhaust.

This post has been edited by MonkiP1: 04 October 2011 - 07:46 PM

#6 myles

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Posted 05 October 2011 - 11:55 AM

Balls! I have a Nur Spec S and de-res and its a bit loud! Harking from Plymouth, Im down there quite often. Ill have to speak to my mate who is a rozzer down there and get the official line.

#7 tony2154

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Posted 31 October 2011 - 04:51 PM

The exhaust was sent back to Cobra, via Alan Jeffrey. I’ve since got it back and fitted. It is noticeably quieter. Thanks to Alan for all your assistance. Apparently its one cop who seems to be on a major mission!!

#8 snake1906

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Posted 13 November 2011 - 11:27 AM

do you know what cobra done to your exhaust? i have had 3 fines for my nur spec in st austell it is 116db with the bung in,if the exhaust is deemed louder than the factory fitted item then its elegal under noise polution

#9 tony2154

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Posted 30 November 2011 - 04:45 PM

snake1906, on 13 November 2011 - 11:27 AM, said:

I presume that put more baffles in??

#10 b3mwe

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Posted 11 December 2011 - 07:18 PM

Me too I had Hassle from coppers first time ever FFs

#11 lewisscoob

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Posted 11 December 2011 - 08:13 PM

120dB is pretty loud. I'm with Craig, I though that the test was to be at 3000rpm and I actually thought that the limit was 85dB.

Glad i've ditched my nur spec now...

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