Quiet High Performance Muffler 454bb - Team Camaro Tech
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post #1 of 12 (permalink) Old Oct 18th, 19, 08:18 PM Thread Starter
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Quiet High Performance Muffler 454bb

I have a 468bb with aggressive hydraulic roller cam, long tube hooker headers to a 3in exhaust, Flow Master Muffs.
Damn thing sounds like a dragster..... I love it, but neighbors and wife not so much.
The only thing I’d prefer to change is the mufflers, but only if I don’t lose a lot of HP.

Does anyone have any suggestion on quieter mufflers that don’t lose HP? 🤷‍♂️
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post #2 of 12 (permalink) Old Oct 18th, 19, 08:50 PM
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Flowmaster makes a dozen different mufflers. Since we don’t know which series you have, I can only suggested one of their quieter ones. They can get pretty long though.
And run exhaust all the way out back.

1968 Butternut Coupe,
421" Dart SHP block
TKO 600 RR
Dutchman 9" w/3.70 US Gear Lightning r&p
Speedtech torque arm,Ridetech HQ coilovers
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post #3 of 12 (permalink) Old Oct 19th, 19, 07:44 AM
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Matt
 
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Re: Quiet High Performance Muffler 454bb

I have Dynomax Super turbo mufflers behind my 461BBC and they do a great job of taming the noise. They flow very well and sound nice with no drone. I have a 3 exhaust as well. Tail pipes also help a lot with quieting things down. Part number 17792 is a true 3 muffler all the way through and is what I have on my car.

1969 SS Garnet Red X55 350 Factory 4 speed
12 Bolt 3.55 Posi
461 BBC TKO600
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post #4 of 12 (permalink) Old Oct 19th, 19, 04:54 PM
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Re: Quiet High Performance Muffler 454bb

Matt 69 is right, Dynomax Super Turbo is the way to go. They will control the noise while still having a very nice muscle car sound. If you need offset/offset use these- https://classicmusclecarexhaust.com/...rbo-mufflers-1
If you need offset/center, use these-https://classicmusclecarexhaust.com/...turbo-mufflers
These mufflers will handle 700HP

Last edited by spoffie1962; Oct 19th, 19 at 05:46 PM.
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post #5 of 12 (permalink) Old Oct 20th, 19, 07:02 AM
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Re: Quiet High Performance Muffler 454bb

X3 on the Dynomax Turbos
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post #6 of 12 (permalink) Old Oct 20th, 19, 05:16 PM
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Re: Quiet High Performance Muffler 454bb

X 4 5 and 6 on the Dyno max super turbos. I have them on my 70 SS Camaro two of them very nice good sound opened up nice idle. I only wish I could have fit their Road Runner series under there, but they are a longer case and would not fit. They sound even better.They also last a long time well made worth the money. Alex
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post #7 of 12 (permalink) Old Oct 20th, 19, 07:30 PM
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Re: Quiet High Performance Muffler 454bb

Borla Pro XS or Magnaflow both are very mellow at cruise and idle yet have some throat when on the gas. Both are straight a through design and have excellent flow characteristics. Zero drone.

1967 SSRS
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post #8 of 12 (permalink) Old Oct 21st, 19, 07:33 AM
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Re: Quiet High Performance Muffler 454bb

Another vote for Dynomax Super Turbo's...
I have them on my Camaro, but they are a bit too quiet for me.

1969 Camaro SS, 350(NOM), M21, 12 Bolt Posi, 01B LOS Build
1977 Camaro, 350(LM1), M20, 10 Bolt Posi, Purchased New, (SOLD)
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post #9 of 12 (permalink) Old Oct 21st, 19, 08:06 PM
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Bobby
 
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Re: Quiet High Performance Muffler 454bb

The XLP is pretty quiet.
https://spintechmufflers.com/street-...-street-group/

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post #10 of 12 (permalink) Old Oct 23rd, 19, 05:50 AM
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Re: Quiet High Performance Muffler 454bb

Quote:
Originally Posted by 77thor View Post
Another vote for Dynomax Super Turbo's...
I have them on my Camaro, but they are a bit too quiet for me.
Remember, offset/center 3" Super Turbos come in 3 case lengths, 14",16"and 20". Those 14" mufflers are fairly aggressive on a radical engine.
Offset/offset comes in 2 sizes- 14" & 22"
https://classicmusclecarexhaust.com/p/3-dynomax-super-turbo-mufflers
https://classicmusclecarexhaust.com/p/3-dynomax-super-turbo-mufflers-1
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post #11 of 12 (permalink) Old Oct 26th, 19, 09:37 AM
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Can think about getting rid of the wife and telling the neighbors to mind their own business 😳😂
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post #12 of 12 (permalink) Old Oct 26th, 19, 09:50 AM
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Re: Quiet High Performance Muffler 454bb

Quote:
Originally Posted by maccam67 View Post
Can think about getting rid of the wife and telling the neighbors to mind their own business 😳😂
Seems reasonable..
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