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  #1 (permalink)  
Old 08-17-2010, 08:25 AM
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Default SPF standard sidepipe noise level

Can anyone tell me what the DB level is with the SPF MK111 standard sidepipes that are supplied by the factory? I am concerned about the noise being too loud since I live in a retirement community and really don't want to scare the old folks too much, well not too much anyway.

Also, is there a difference in the tonal effect coming from SS pipes vs the mild steel?

Any help would be much apprecaited.

Thanks, tin-man
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Old 08-17-2010, 08:52 AM
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I wouldnt worry about the noise, most are hard of hearing , a lot of Snowbirds so not many people in West are there, and if YOU dont have your hearing aid in the ear you cant tell either. Also potatoes work, put one in each of the road pipes and listen if its better or worse.
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Old 08-17-2010, 09:24 AM
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Short shift with low RPM and you'll be fine...

Grab some gears with high RPM's is a different story..

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Old 08-17-2010, 09:36 AM
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The stock SPF pipes are fairly quiet.

Don't worry about the neighbors.

Most upgrade to larger inside diameter pipes as the originals are extremely restrictive.
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Old 08-17-2010, 10:03 AM
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When I had my car through the Bay Area Resources (BAR) in Calif. to get the car smog exempted 7 years ago the technician put a DB meter to my pipes at 2500 rpm at 4 feet away and measured 105 or 110 db. My neighbors in the Bay Area didn't take kindly to me firing up the Mighty 418 at 6 am every Saturday morning so I would coast out of my driveway and pop the clutch down the hill a few hundred yards away. My past experience with stainless steel pipes has been that they seem louder than others.
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Old 08-17-2010, 10:06 AM
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You only live once. Install a pair of these and stir their tired and downtrodden souls!

[img]http://www.clubcobra.com/photopost/d...632Pipes_2.JPG[/img]



-Dean

Last edited by RedBarchetta; 08-17-2010 at 10:44 AM..
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Old 08-17-2010, 10:08 AM
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Stock pipes are not real loud although over time the fiberglass packing deteriorates somewhat making them a bit louder. The SS aftermarket pipes are better designed, larger, costly, and you have your choice of sound level. Best choice is http://fireflyperformance.com/index.htm . I have the original ceramic coated pipes and have not had a problem in over 10 years of use. Still look like new.

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Old 08-17-2010, 11:15 AM
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Originally Posted by skully View Post
if you dont have your hearing aid in the ear you cant tell either. .
lmao

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Last edited by somedayaurora; 02-21-2011 at 05:39 PM..
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Old 08-17-2010, 01:45 PM
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By the way, there is a direct coorelation to noise and horsepower. Mild motors seem to be "quiet" compared to those of us in the 500+ hp range.
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Old 08-17-2010, 01:49 PM
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LOL, I dont care what pipes you have. They will hear you leave and they will know you are coming home well before you get there.
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Old 08-17-2010, 02:25 PM
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LOL, I dont care what pipes you have. They will hear you leave and they will know you are coming home well before you get there.
Unless you arrive home around 4PM.

Then they are all having dinner at Denny's!
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Old 08-17-2010, 11:42 PM
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Unless you arrive home around 4PM.

Then they are all having dinner at Denny's!
jhv48, you are right, early bird I dinners, I forgot that. LMAO. tin-man
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Old 08-17-2010, 11:49 PM
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Default In Gods waiting room there are no downtrodden souls.

Quote:
Originally Posted by RedBarchetta View Post
You only live once. Install a pair of these and stir their tired and downtrodden souls!

[img]http://www.clubcobra.com/photopost/d...632Pipes_2.JPG[/img]



-Dean
that said, those pipes look awesome, where did you get them from, do tell.tin-man.
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Old 08-17-2010, 11:54 PM
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Quote:
Originally Posted by Skully View Post
I wouldnt worry about the noise, most are hard of hearing , a lot of Snowbirds so not many people in West are there, and if YOU dont have your hearing aid in the ear you cant tell either. Also potatoes work, put one in each of the road pipes and listen if its better or worse.
Skully, be nice now. tin-man
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Old 08-18-2010, 08:58 AM
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A lot of our friends live in Corte Bella, we live in Sun City Festival. Ear muffs work well, or ear phones , so you dont hear the noise. I always let the neighbors know when I leave and when I come back, kind of a let them know I didnt move.
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Old 08-18-2010, 10:32 AM
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Originally Posted by tin-man View Post
those pipes look awesome, where did you get them from, do tell.tin-man.
Stainless Specialties. Do a search under "muffler" and you will see a few threads on these. 'Jake' even posted a short YouTube video and his sounds just like mine (when they were fresh). Like all pipes, they deteriorate with age and get louder. They are a well built muffler but they need a transition cone to make them better. See this thread to explain.

Stainless Specialties muffler mods...

I recently bought a complete spare set of pipes and will be working on a second set in the near future. Not sure yet if I'm going to go with the same mufflers or try something else. Either way, I need to incorporate a transition cone to keep the deacceleration flutter to a minimum.

Regards,

-Dean
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Old 08-18-2010, 10:43 PM
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Quote:
Originally Posted by RedBarchetta View Post
Stainless Specialties. Do a search under "muffler" and you will see a few threads on these. 'Jake' even posted a short YouTube video and his sounds just like mine (when they were fresh). Like all pipes, they deteriorate with age and get louder. They are a well built muffler but they need a transition cone to make them better. See this thread to explain.

Stainless Specialties muffler mods...

I recently bought a complete spare set of pipes and will be working on a second set in the near future. Not sure yet if I'm going to go with the same mufflers or try something else. Either way, I need to incorporate a transition cone to keep the deacceleration flutter to a minimum.

Regards,

-Dean
Hi Dean, thanks for this information, I will follow up with Stainless Specialties. Regarding the sound, regretfully I cannot access You Tube in China, its blocked by government censors. By any chance do you happen to have a digital visual with sound that could be sent to me by a PM?

I would be very grateful if this could be accomplished and I could finally get to hear what is being discussed. tin-man
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Old 08-18-2010, 11:09 PM
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Sorry I can't help you on that one. Maybe someone else here has the skills to take a YouTube video and convert to another format and send it across.
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Old 08-18-2010, 11:13 PM
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Red, glad to see your back
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Old 08-19-2010, 05:35 AM
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Tin-Man,

I had my standrd SPF now for 7 years, (changed to firefly) as said already you will be heard before you are even seen. I live in a very quiet area and to respect the others i keep the RPM low and short gears until im further out.

Coming home at 3am is a no no...

But just do it, but keep the RPM's down.

Happy cruising

Skip.
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