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Old 12-01-2014, 09:47 AM   #1
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Help:How and why did my exhaust get more quiet.

i have dual magnaflow exhaust on my 2004 with pypes high flow cats and bbk shorty headers. the day i left the muffler shop it sounded like godzilla and would scream now it just sound low pitched still sounds mean and bad but it isnt the same and i know it, so plz dont say its kuz i got used to it

any body got a clue or there own opinion so nobody is wrong its your piece of mind.
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Old 12-01-2014, 10:39 AM   #2
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You just experienced the break-in period.
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Old 12-01-2014, 10:40 AM   #3
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could they some how be cleaned or a additive that would make it scream like godzilla again. kinda miss that growl
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Old 12-01-2014, 01:37 PM   #4
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Help:How and why did my exhaust get more quiet.

Get Cat deletes or hi flow cats


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Old 12-01-2014, 01:44 PM   #5
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Quote:
Originally Posted by DallasStang77 View Post
Get Cat deletes or hi flow cats


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i have high flows they used to be loud i wonder if they some how get clogged but idk i just changed them.
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Old 12-01-2014, 01:59 PM   #6
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My outlaw a got a good amount quiter after break in

05 Gt Premium Performance White, flowmaster outlaws, Jlt Series 3, Bama 91r tune
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Old 12-01-2014, 02:18 PM   #7
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How many miles would you consider break-in?
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Old 12-01-2014, 02:20 PM   #8
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i think it was like a week of usual driving im not sure in miles. some one here will
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Old 12-01-2014, 02:22 PM   #9
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Yeah mine was a week or teo

05 Gt Premium Performance White, flowmaster outlaws, Jlt Series 3, Bama 91r tune
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Old 12-01-2014, 04:39 PM   #10
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Maybe add a cutout or a side exhaust As for the exhaust getting quiet it's strange but it seems my exhaust gets a bit quieter than normal on certain nights. Could be a cold night or a warm night. Some times for a period of time the exhaust seems less rumbly when I gas it than others.

This is also with the car at operating temp.


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