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Taggert 01-05-2011 09:48 PM

Stock Muffler Leaking Water
2008 Ram 39000 miles, stock exhaust. I happened to notice water leaking from the back of the muffler today. On closer exam, the seams are rusted. South Carolina is not that harsh of a climate. Is this a problem?
I want to change to Mag muffler, don't want to be too loud. What is the difference between 14" and 18" as far as sound?

FormerGorilla 01-06-2011 02:05 AM

The outside of the muffler and the seams will rust naturally, but take a look at the back of the muffler toward the bottom, there should be a small hole drilled in it. It is designed to weep moisture that leads to rust on the inside of the muffler. This may be your leak.

As for 14" vs 18"... depends on your taste. To get a good comparison you might try to find some sound clips on Just input the muffler brand and the size, you should get some decent clips. A buddy of mine has the 18" Magnaflow, I have a 24", both single-out exhaust systems. The 18" seems plenty loud.

Taggert 01-07-2011 10:44 PM

Thanks for the info! Had to take a quick trip out of town. Just checking back in. You are spot on. The water is coming from right where you indicated. I'll check YouTube for the comparisons.

Toms Blue Ram 1500 01-07-2011 10:47 PM


platinuminjected 01-07-2011 11:03 PM

its a good thing

GTyankee 01-07-2011 11:25 PM

the water is coming directly from your catalytic converter, it suppose to happen

the contaminants from your engine that produce smog & other pollution, goes into the converter(s), the so called tiles in there are coated with a substance, the N0X then cling to that substance & are converted to plain water & then come out of your exhaust

HVACeR 01-08-2011 06:02 AM

Water not only is a natural by product of combustion but their is water (humidity) in the air that is pulled into your engine through your intake and the expelled through your exhaust.

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