Dynomax Ultra-Flo Muffler on 4.7 H.O.? - Jeep Garage - Jeep Forum

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Old 12-19-2010, 12:30 PM
My Jeep: 2002 4.7 HO WJ
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Dynomax Ultra-Flo Muffler on 4.7 H.O.?

Hi Everyone,

Looking to replace the stock muffler on my '02 WJ Overland. I'm thinking about getting the Dynomax Ulra-Flo Welded stainless steel muffler. Anyone have experience with this muffler/engine combo and if so, how much louder is it than the OEM muffler? I'm basically looking for a muffler with a slightly throatier sound/rumble than stock but without it being noisier on the inside (if that's possible) .

Their Dynomax site says the Ultra-Flo Welded has an aggressive sound, but is also the replacement muffler listed under the RockAuto site for the H.O. engine. Just wondering how much more agressive...

I was also looking at the Dynomax Quiet-Flow muffler on the RockAuto site, but it isn't spec'd. for the H.O. engine (though I'm sure it would fit).

Thoughts? Other recommendations that meet my criteria?

Rojohn Soriano
- 2002 Jeep Grand Cherokee Overland
- 2007 Dodge Grand Caravan SXT
- 1972 Dodge Challenger
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