2001 5.4 Expy Muffler replace

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Scott Yancey

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I am looking to replace just the muffler on my 2001 Expedition. I'm wanting something with a little rumble, but nothing loud and having a drone to it. I know everyone has an opinion and y'all would have the answer.
Thanks!
Scott
 

Bowesmobile

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My recommendation is a Dynomax Ultraflow muffler. Louder than stock, but excelent flow through and not so loud with droning and all the negative stuff like that.
 

Yudaman

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I have a Flowmaster 40. It's louder than stock, but is a little droaney with the 3" tail pipe.
 

thenaaks

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Borla pro-xs here, with new 2.5 inch tailpipe. With the 3.73 gears, it is a tiny bit loud in the interstate (but puts the kids to sleep). Sounds great otherwise. 1.5 mpg gain.
 
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