Author Topic: Exhaust Muffler  (Read 1108 times)

Offline Rikuma

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Exhaust Muffler
« on: January 22, 2014 - 03:34:47 pm »
It is possible that this are the original Muffler from 1970 ?
Or is this a repro Part ?
Is any Number on this Muffler for the Year ?











Offline jhaag

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Re: Exhaust Muffler
« Reply #1 on: February 23, 2014 - 11:43:44 pm »
While I am not an expert on OE stuff I think an original muffler would be side in not center in. Also the 21703 looks like a Walker exhaust part number on the resonator.  :dunno:
love 70 Challengers

Offline Chryco Psycho

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Re: Exhaust Muffler
« Reply #2 on: February 24, 2014 - 08:27:19 pm »
exactly , the inlet is offset on the factory mufflers not centered

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Offline Tom Swope

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Re: Exhaust Muffler
« Reply #3 on: February 28, 2014 - 11:05:24 am »
The first picture (oval unit) is of an aftermarket resonator and is correct with the center/center configuration. The second picture (round unit) is of the muffler and is also an aftermarket unit. The 21703 part number is a Walker(Tenneco) part number as mentioned by another poster.

Offline CudaJon

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Re: Exhaust Muffler
« Reply #4 on: May 24, 2017 - 08:43:27 pm »
I have the same muffler which I ruined getting at the sender, 21703 is the p/n and is identical to the 2nd picture in the thread.  I'm wondering what the replacement is from Walker. Doing the measurements I came up with model 18130. Can anyone confirm this? Thanks!!