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BeckyD @ James Martin Chevy


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Old 02-03-2019, 10:33 AM   #29
Heartbreaker
 
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Drives: 2018 Camaro ZL-1, Hyper Blue A10
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Sound dB limit

Is there anyone out there that is running headers and high flow cats that stayed under the DB limit? I am running headers with high flow cats that connect into the stock muffler. A little concerned about track sound dB limit.
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Old 02-03-2019, 05:29 PM   #30
BAD DAB


 
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Drives: 2010 Camaro 2SS/RS Black & Silver
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Quote:
Originally Posted by Heartbreaker View Post
Is there anyone out there that is running headers and high flow cats that stayed under the DB limit? I am running headers with high flow cats that connect into the stock muffler. A little concerned about track sound dB limit.
I ran last year with that same setup with no problems. You should be fine.
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Old 02-04-2019, 05:06 PM   #31
Bertha II
 
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Drives: 2010 2SS/RS M6 SW
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Quote:
Originally Posted by Heartbreaker View Post
Is there anyone out there that is running headers and high flow cats that stayed under the DB limit? I am running headers with high flow cats that connect into the stock muffler. A little concerned about track sound dB limit.
Agree with Bad Dab - chambered stock mufflers should be fine. I blew the sound limit there in 2017 with cam, headers, hi-flo cats and Borla ATAK mufflers (104.7 dB). Came back last year with Borla S-Type mufflers and passed.
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