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C5 Muffler loudness ranking

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Old Dec 30, 2002 | 01:23 PM
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Default C5 Muffler loudness ranking

I'm looking for loudness rankings of various mufflers. I have a Flowmaster set on my 98 C5, which has a very deep musclecar sound. After year of daily driving with a deep resonance (especially at 2500rpm), I'm considering replacing them with Stingers.

Here's where I think mufflers rank from reading the posts (Loudest first): (Idle/WOT db numbers added courtesy Scissors suggestion)
- Borla XR-1 ... 90/110 (for kromberg/DsC5)
- SLP Loudmouth
- Flowmaster (2500rpm resonance)
- B&B PRT ... stock+3 / 105 db
- Stinger (upped one rank for DsC5)
- Corsa Indy (Low resonance)
- B&B Route ... ??? / 97db
- GHL (http://www.ghlmotorsports.com/corvette.htm) (Low resonance)
- Magnaflow
- C5 w/A&A mod (https://www.aandacorvette.com/cart/show_items.asp?MainCatID=3 bottom of page)
- Z06 stock
- C5 stock ... ??? / 94 db

Is the ranking order correct?
Will Stingers get rid of my resonance, is there a better choice?


Also see thread: Unbiased exhaust opinion http://forums.corvetteforum.com/zerothread?id=461284

[Modified by rd98rdstr, many times]



[Modified by rd98rdstr, 10:46 PM 1/2/2003]
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Old Dec 30, 2002 | 01:36 PM
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Default Re: C5 Muffler loudness ranking (rd98rdstr)

I think Stingers are louder than Corsas. :seeya
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Old Dec 30, 2002 | 02:14 PM
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Default Re: C5 Muffler loudness ranking (rd98rdstr)

This is all I could find:

Exhaust = Idle / WOT
Stock = ??? / 94 db
B&B Route 66 = ??? / 97db
B&B PRT = stock+3 / 105 db
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Old Dec 30, 2002 | 02:23 PM
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Default Re: C5 Muffler loudness ranking (Scissors)

Interesting... Idle/WOT Db numbers... Must add to list...
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Old Dec 30, 2002 | 02:45 PM
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Default Re: C5 Muffler loudness ranking (rd98rdstr)

What about the Borla XR-1? The muffler it has on it is questionable to even call it one. Can not wait for the UPS human to deliver mine :D

Keith

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Old Dec 30, 2002 | 03:13 PM
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Default Re: C5 Muffler loudness ranking (kromberg)

What about the Borla XR-1? The muffler it has on it is questionable to even call it one. Can not wait for the UPS human to deliver mine :D

Keith
if I remember right - it was something liek 90/110. You're going to love it. :yesnod: :) :seeya
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Old Dec 30, 2002 | 03:14 PM
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Default Re: C5 Muffler loudness ranking (kromberg)

Whats the db #`s for the stinger :confused:
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Old Dec 30, 2002 | 03:15 PM
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Default Re: C5 Muffler loudness ranking (rd98rdstr)

- Borla XR-1 (for kromberg)
- SLP Loudmouth


Is the ranking order correct?
after listening to snide's LM audio clip - I'd say Loudmouths are a tad louder and deeper than my XR1. :seeya
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Old Dec 30, 2002 | 03:35 PM
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Default Re: C5 Muffler loudness ranking (rd98rdstr)

It would be interesting to see where stock C5 exhaust with the A&A exhaust mod would fall :)

Keith

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Old Dec 30, 2002 | 05:47 PM
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Default Re: C5 Muffler loudness ranking (rd98rdstr)

Thanks to all that replied. I'm beginning to believe there's alternatives to Stingers.
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Old Dec 31, 2002 | 10:21 AM
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Default Re: C5 Muffler loudness ranking (rd98rdstr)

what is C5 w/A&A mod????
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Old Dec 31, 2002 | 11:50 AM
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Default Re: C5 Muffler loudness ranking (Mordenkanen)

what is C5 w/A&A mod????
I believe it's just a pipe you weld on to allow some of the exhaust gasses to bypass the muffler.
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Old Dec 31, 2002 | 12:08 PM
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Default Re: C5 Muffler loudness ranking (Scissors)

I have the Stingers and a dB level meter... are these measurements being taken inside the car or outside? I can take a reading today, just let me know.

Patrick :cheers:
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Old Dec 31, 2002 | 12:16 PM
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Default Re: C5 Muffler loudness ranking (Patman36)

I have the Stingers and a dB level meter... are these measurements being taken inside the car or outside? I can take a reading today, just let me know.

Patrick :cheers:
I believe that it's a pass-by check from 50' with the car at WOT and uphill.
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Old Dec 31, 2002 | 01:05 PM
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Default Re: C5 Muffler loudness ranking (Scissors)

I believe that it's a pass-by check from 50' with the car at WOT and uphill.
Yikes, I'll try and get someone to help with that... I will take idle at WOT readings from inside the car though.

Patrick
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Old Jan 1, 2003 | 11:30 AM
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Default Re: C5 Muffler loudness ranking (Scissors)

what is C5 w/A&A mod????

I believe it's just a pipe you weld on to allow some of the exhaust gasses to bypass the muffler.
Actually 2 small pipes (1 for each side). Cheapest way to get rid of that pitiful "Girly-Man" Stock C5 sound!! :D
https://www.aandacorvette.com/cart/show_items.asp?MainCatID=3

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Old Jan 2, 2003 | 08:43 AM
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Default Re: C5 Muffler loudness ranking (Gipper)

I find the stock exhaust system (after being broken in at around 5K miles) to be loud enough for me. Be careful what you end up getting, some of those systems will resonate a lot inside and end up driving you crazy. :yesnod:
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Old Jan 2, 2003 | 09:42 AM
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Default Re: C5 Muffler loudness ranking (Mark S.)

:iagree: Do you want just loud, no matter what the resonance? Or Loud with no resonance?

The safest route for absolutely no resonance is Corsa Indys. Any other course MAY leave you with varying degrees of resonance?

Some people say some of the other systems have no resonance, but the only "louder than stock" system that EVERYONE agrees has no resonance is the Corsa Indy.

Personally I prefer the B&B PRTS but there is disagreement about the resonance (some say no resonance, some say there is some). I have not heard the Stingers, though!

Goos Luck! :cheers:
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Old Jan 2, 2003 | 11:53 AM
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Default Re: C5 Muffler loudness ranking (wwashing)

DITTO! That has been my experience ;)
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