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Old 05-24-2005, 09:36 PM   #1
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Default :/ i feel like i got my car running right now....

i been driving it around alot with the muffler (magnaflow Dual HighFlow) and i was wondering do mufflers have to break in or....what becuz i actually feel more idk
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Old 05-25-2005, 12:34 AM   #2
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You're seeing/feeling things. A muffler is simply a metal can with metal fins inside it, unless you buy a design that has packing in it. Even if you burn the packing out it won't give you "noticeable" power, just make your car sound like ***.

Try to use real sentences, it takes a fraction of a second more and goes a long way to prevent yourself from looking like a moron.
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Old 05-25-2005, 02:58 AM   #3
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nope mufflers do not have to break in
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Old 05-25-2005, 03:02 AM   #4
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Quote:
Originally Posted by Hans
nope mufflers do not have to break in
however, tone does change... noticed by both me and bonnememn... on our flowmaster 80 series
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Old 05-25-2005, 06:10 AM   #5
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Might want to have it checked.
Sounds like the muffler bearings may be getting ready to go!!!!!!
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Old 05-25-2005, 08:52 AM   #6
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LMAO!! It does! Better get that in to an authorized GM Dealer!

Haro is right though, there is something like a break-in.. but more of the sound does change with new mufflers. I noticed it on my mom'* car too. Even though that is a factory muffler.

I'm not sure if haro'* got louder or softer, but me mum'* got softer.


-justin
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Old 05-25-2005, 01:38 PM   #7
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As the metal heat cycles it expands and contracts, this softens it somewhat (not much) and it gets into a groove if you will. It also might get some buildup, which can change the tone.

If you have a glass packed muffer, or one with a lot of baffles/chambers they can change more.
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Old 05-25-2005, 06:33 PM   #8
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Right, but regardless he will not see a noticeable increase in power.
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