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Looking for aftermarket diesel performance muffler

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I'm looking for an aftermarket diesel performance muffler, something like what a Jannety or Jardine system would use. It would need to have a 4" inlet and 4" outlet.



Does anyone know where to find or how to order one of these mufflers?



Thanks
 
Tex;

I'm a big fan of the Walker 21471. 4" in, 4" out, straight-through. It sounds like a big rig. I was able to order mine from a local auto-parts store.

Josiah
 
4" you ask

WALKER

Muffler:

21471 in/out 4"



Resonator:

21835 (12") long core

22771 (20")

22914 (33").



17537 6x27 4" muffler



ALLIED

10990-24 4" in/out 10x24 case with offset

10990 4" in/out 10x24 case no offset

8990-24 4"in/out 8-5/8 x 24 case

8990-24Q 4"in/out 8-5/8 x 24 case X baffle





MAGNAFLOW

12770 4"in/out 14"

12771 4"in/out 20"

12772 4"in/out 34"

12773 4"in/out 30"





I think the numbers are good.



FWIW

I have a single 10990 4" Allied muffler on mine. Its getting a second one this spring to cut the drone.
 
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