Muffler Replacement

[gulfman]

I thinking of replacing the original muffler on my 2003 expedition. I would like to replace it with one that has a little sound but not real loud. The GMC SUVs have a very low rumble sound that is nice. Has anyone put on a new muffler with a little more masculine sound?

 

[JoeD]

I did away with the muffler, it has a rumble but not obnoxious.

 

[GAINMOB]

Flowmaster 70 series...

Mr. 10K

 

[GAINMOB]

I have the 40 series...not to bad

Mr. 10K

 

[1955moose]

Is that the 3 chamber flow master? Does it resonate or sound smooth in the cab?


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[1997SCEBFEX]

I've had both the flowmaster 40 & 50; 50 currently installed and no resonation in cabin.

 

[EliteFord]

I did away with the muffler, it has a rumble but not obnoxious.

hi, so just replaced with a straight pipe?

did you change the exhaust to exit the rear rather than the side?

 

[JoeD]

hi, so just replaced with a straight pipe?

did you change the exhaust to exit the rear rather than the side?

This was on my pick up with the 5.4, I used a turn down style elbow so it was under the bed. On the Exped I would recommend maintaining the factory routing so you dont have exhaust coming into the vehicle

 

[EliteFord]

I always wondered why they did that, don't like the look, but probably effective. but gm and dodge seem to do just fine with rear exit.