What metal is our exhaust mufflers made of?

[ultravorx]

Hey guys, i was wondering what materials our mufflers were made of. This is for a little research project im doing. Is it stainless steel or aluminum, or posssibly another metal im unaware of? Any info on this would be great.
Frank

[gdmjoe]

ultravorx - Hey guys, i was wondering what materials our mufflers were made of. This is for a little research project im doing. Is it stainless steel or aluminum, or posssibly another metal im unaware of? Any info on this would be great.
Stainless steel ( including pipes ).

[mcb26]

The kind that goes DING when you cut the motor off

[BillyGman]

The kind that goes DING when you cut the motor off
That's for sure!!!!

[QWK SVT]

That's for sure!!!!
Is that what it is? I just heard it for the first time, the other night...

Last night, I parked the car in the garage. I exited, closed the insulated garage door, and lit a cigarette (I NEVER smoke in the car). From the outside I heard a loud DING... I mean church-bell loud! :eek:

It startled me, as it was rather late, and the neighborhood was quiet. I opened the garage door, to hear it again, and could tell it was coming from under the rear, but didn't hear it again, and could track down from where.

So, what causes this??? :confused:

[gdmjoe]

QWK SVT ... So, what causes this???
Expansion / contraction of the cat' and muffler internals during initial cool-down.

[wsmylie]

Know what you mean about the "ding" sound coming from exhaust system after shut down. Sometimes my car sounds like I ran over a xylophone.

[BillyGman]

It sounds like itcomes from the exhaust tips, and they're thefirst to begin cooling down since they're at the back of the exhaust system and don't get as hot as the rest of the exhaust anyway. They begin to cool down immediately since they're well away from the engine heat.


it's actually your Marauder rebelling that you've taken her off the road and shut her down.....she wants to be out there Marauding. :banana2:

[TheFlatlander]

A good loud "dinging noise" when you shut down means you had some fun getting there. Its you cars way of saying Thanks and telling you how much you are appreciated!

[LordVader]

:beatnik: Yea...the "ding" is good. I agree that's the old girl's way of saying she had a good time and is saying "have a great day"! The first time I heard the load levelers now that was something else.

[Fourth Horseman]

I haven't heard much of this, myself. I certainly run the car hard from time to time, but I usually try to cool her down by driving the last mile or two to home in a more relaxed fashion. I wonder if that's why I haven't heard the loud pings?

[Bluerauder]

A good loud "ding noise" whenn you shut down means you had some fun getting there.
Mine must be having lotsa fun 'cause she'll Piiiiing and Diiing for nearly 15 minutes having those contractions. :lol:

[wchain]

Hey guys, i was wondering what materials our mufflers were made of. This is for a little research project im doing. Is it stainless steel or aluminum, or posssibly another metal im unaware of? Any info on this would be great.
Frank


Faurecia is the OEM exhaust supplier on the MM. All other Panthers get their exhaust sourced from Arvin Meritor.