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Anyone replace the muffler on their Chrysler 300m? What did you use?



 
 
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  #1  
Old December 8th 12, 09:45 PM posted to rec.autos.makers.chrysler
MoPar Man
external usenet poster
 
Posts: 660
Default Anyone replace the muffler on their Chrysler 300m? What did you use?

I've been looking into various brands (Walker, Magnaflow, Flowmaster,
etc) and can't really find anything made with stainless steel that
matches the dimensions of the factory OEM muffler.

The 300m has a muffler AND a resonator under the rear of the car. The
tail-pipe comes out the resonator (which looks like a muffler but
apparently isin't).

The original muffler shell measures 18" long, 12" wide and 6" high (oval
profile).

I can find some aftermarket stainless mufflers that are 18" long, but
their oval profile seems to be quite a bit smaller (5" by 8" for
example).

For non-stainless types (aluminized) the Walker 21375 seems to be a good
match - but I'd rather replace it with another stainless steel one if I
can find it.

Any ideas?

Comments?
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  #2  
Old December 9th 12, 12:06 AM posted to rec.autos.makers.chrysler
BobMCT
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Posts: 9
Default Anyone replace the muffler on their Chrysler 300m? What did you use?

On Sat, 08 Dec 2012 15:45:57 -0500, MoPar Man > wrote:

>I've been looking into various brands (Walker, Magnaflow, Flowmaster,
>etc) and can't really find anything made with stainless steel that
>matches the dimensions of the factory OEM muffler.
>
>The 300m has a muffler AND a resonator under the rear of the car. The
>tail-pipe comes out the resonator (which looks like a muffler but
>apparently isin't).
>
>The original muffler shell measures 18" long, 12" wide and 6" high (oval
>profile).
>
>I can find some aftermarket stainless mufflers that are 18" long, but
>their oval profile seems to be quite a bit smaller (5" by 8" for
>example).
>
>For non-stainless types (aluminized) the Walker 21375 seems to be a good
>match - but I'd rather replace it with another stainless steel one if I
>can find it.
>
>Any ideas?
>
>Comments?



Unless you're doing an exact MoPar replacement then as long as the
lengths are correct you shouldn't be concerned. I've not seen any
performance exhaust mufflers that are perfect matches.

I replaced my factory exhaust system with a Borla SS set and the pipes
were larger in diameter, there was no reasonator and the mufflers were
smaller. But the double walled chrome tipes still came out the back
where they should be. And there is no comparison to the tone
improvement.
  #3  
Old December 9th 12, 02:04 AM posted to rec.autos.makers.chrysler
MoPar Man
external usenet poster
 
Posts: 660
Default Anyone replace the muffler on their Chrysler 300m? What did youuse?

BobMCT wrote:

> > I've been looking into various brands (Walker, Magnaflow,
> > Flowmaster, etc) and can't really find anything made with
> > stainless steel that matches the dimensions of the factory
> > OEM muffler.

>
> Unless you're doing an exact MoPar replacement then as long as the
> lengths are correct you shouldn't be concerned. I've not seen any
> performance exhaust mufflers that are perfect matches.
>
> I replaced my factory exhaust system with a Borla SS set and the
> pipes were larger in diameter, there was no reasonator and the
> mufflers were smaller. But the double walled chrome tipes still
> came out the back where they should be. And there is no comparison
> to the tone improvement.


My current muffler is still functional and intact, but when-ever the car
has been put on a hoist, it's been pointed out that the muffler has many
outer-shell perforations - none of which seems to be causing any changes
to the exhaust sound.

The only thing I want out of my exhaust system is for it to be quiet.

I have no care or interest at all to try to achieve any sort of exhaust
tone our particular sound. Just quiet. Urban life is noisey enough as
it is.

I'm wondering if the degree of "muffling" is proportional to muffler
volume...
  #4  
Old December 9th 12, 02:35 AM posted to rec.autos.makers.chrysler
Ashton Crusher[_2_]
external usenet poster
 
Posts: 2,874
Default Anyone replace the muffler on their Chrysler 300m? What did you use?

On Sat, 08 Dec 2012 20:04:36 -0500, MoPar Man > wrote:

>BobMCT wrote:
>
>> > I've been looking into various brands (Walker, Magnaflow,
>> > Flowmaster, etc) and can't really find anything made with
>> > stainless steel that matches the dimensions of the factory
>> > OEM muffler.

>>
>> Unless you're doing an exact MoPar replacement then as long as the
>> lengths are correct you shouldn't be concerned. I've not seen any
>> performance exhaust mufflers that are perfect matches.
>>
>> I replaced my factory exhaust system with a Borla SS set and the
>> pipes were larger in diameter, there was no reasonator and the
>> mufflers were smaller. But the double walled chrome tipes still
>> came out the back where they should be. And there is no comparison
>> to the tone improvement.

>
>My current muffler is still functional and intact, but when-ever the car
>has been put on a hoist, it's been pointed out that the muffler has many
>outer-shell perforations - none of which seems to be causing any changes
>to the exhaust sound.
>
>The only thing I want out of my exhaust system is for it to be quiet.
>
>I have no care or interest at all to try to achieve any sort of exhaust
>tone our particular sound. Just quiet. Urban life is noisey enough as
>it is.
>
>I'm wondering if the degree of "muffling" is proportional to muffler
>volume...


You could wrap the muffler with metal tape like they sell in home
depot for ac ducts (metal tape, not duct tape). My main worry with
perforated muffler would be exhaust gases getting into the car.
 




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