How loud is Arvinode exhaust ?

  • So my car is too loud. At least my local DMV Inspector thinks so.<img src=images/icon_smile_angry.gif border=0 align=middle> Must be said the car currently has 4in1's, straight pipes, glasspacks and no silencers. Still, same exhaust as last time I passed the same inspection couple years ago, no holes, no changes made to the engine...

    Same testing procedure, different guy, different machine, different rev counter, can't argue with these people anyway, end result is I need to make it quieter.


    Looks like my options are as follows :

    1. a new stock exhaust

    2. Arvinode

    3. stick some scratch pads or metallic wool of some sort in existing exhaust...(not recommended)


    I have seen Dave's (round2k) fantastic video dozens of times and although incorrect for my car, I love the sound of the Arvinode. So I am wondering if that would pass the test here.<img src=images/icon_smile_evil.gif border=0 align=middle>

    The way they test here is as follows :

    Stand on the driver side of the car, 7m (about 21 ft) away and facing the car door, and measure sound at 4500rpm. I need to be under or at 77dB at most.


    This is where you lovely people come into play <img src=images/icon_smile_big.gif border=0 align=middle> : Would one of you chaps who has Arvinode installed and who can get his hands on a sonometer run this test for me and tell me just how loud Arvinode exhaust really is ?


    Thanks in advance

  • <font face='Comic Sans MS'>Hmmmm. That inspector sounds much like a grizzled old Air Force Master Sargeant I had dealings with as a young Airman many, many moons ago. He 'thought' my 52 Ford had too loud an exhaust note and denied me a base entry sticker until corrected. Of course there were no decible standards, but he was the Msgt and I was the two stripper. No mystery as to who prevailed.


    I would think another option you might have is to research what loudness noise code your area has, if any. If one is expressed, surley an inspector would be obliged to test your car for compliance as apposed to a WAG of 'I think it's to loud' decision. </font id='Comic Sans MS'>


    [Blocked Image: http://s4.tinypic.com/30w2jyw_th.jpg]


    Edited by - 65Rangoon on 07/05/2011 09:37:21

  • Hi Charlie

    How right you are ! Funnily enough, I also served in the Air Force (the French one) and had a Master Sgt who was a right PITA as well.


    Here in Switzerland, the noise standard used for my classic is actually expressed on my car registration. When I imported the car, I had to go through a technical inspection at the "Cantonal DMV". They ran the procedure as described above, and came up with 77dB as the noise my car was making at a stabilised 4500rpm. That was set as the threshold level I cannot cross.

    Now a couple years have gone by, time for the new inspection, at the local DMV this time. My car does not have a rally pac, so the guy uses an electronic impulse counter, and plays with the settings until he thinks he's got the right mode for a v8. His colleague stands 7m away from the car, holds the sonometer at belt level, and signals he is ready for measurement. The guy in the car brings the engine to 4500 rpm, and nods to the other man who takes the reading.

    It is exactly the same procedure they used the first time around, so I am thinking there wont be a problem. But the man comes up with a higher reading than 77dB. Argh... So I tell him that last time round, the guy eased off the pedal a little to stabilize at 4500 rpm, and this time they didnt do it. No sir, standard procedure here.

    So i tell them there is a wall not too far behind the car and that is also affecting the reading. No sir, standard procedure here.

    So i ask him if I can go and perform the same test in the Cantonal DMV for comparison. No sir, what starts here ends here.

    There is no reasoning these people. For all I know the guy was in a bad mood, or jealous, or something like that. Maybe Madame was not so keen the previous evening...

    Back to my problem, I have to find a way to get under the 77dB now.

    The fact is the car IS very loud, a tad softer wouldn't really hurt.

    So a new exhaust will probably have to make its way on to the car, just hoping someone can chime in with a reading on the Arvinode set up so I can decide which way to go <img src=images/icon_smile.gif border=0 align=middle>

  • I don't have ready access to a DB meter, but they will have one at the race track at the Northwest Mustang Roundup next week in Washington. I can probably get a reading for you when I'm there.

  • This is what we get when the governments and bureaucrats get too much power in the new progressive world. They know what is best for us and they are just there to protect us from ourselves, right.

    Personally I hate these people, where common sence and looking at

    the big picture is long gone.

    /Bo

  • <BLOCKQUOTE id=quote><font size=1 face="Verdana" id=quote>quote:<hr height=1 noshade id=quote>

    I don't have ready access to a DB meter, but they will have one at the race track at the Northwest Mustang Roundup next week in Washington. I can probably get a reading for you when I'm there.

    <hr height=1 noshade id=quote></BLOCKQUOTE id=quote></font id=quote><font face="Verdana" size=2 id=quote>


    Very cool thanks Dave. This forum rocks and it is the people here that make it that way.

  • <BLOCKQUOTE id=quote><font size=1 face="Verdana" id=quote>quote:<hr height=1 noshade id=quote>

    Hi Charlie

    How right you are ! Funnily enough, I also served in the Air Force (the French one) and had a Master Sgt who was a right PITA as well.

    <hr height=1 noshade id=quote></BLOCKQUOTE id=quote></font id=quote><font face="Verdana" size=2 id=quote>


    <font face='Comic Sans MS'>That tickled me. I reckon Msgt's are Msgt's, no matter what air force they belong to.


    I got around my PITA problem with some well placed steel wool shoved up the '52 Fords exhaust pipes. I had visions of the stuff being blown out as I blipped the throttle a couple of times to satisfy Sgt Butt Breath, that the car was now quiet enough to qualify for a base sticker. But it held in place thank goodness. </font id='Comic Sans MS'>


    [Blocked Image: http://s4.tinypic.com/30w2jyw_th.jpg]

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