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Ford Truck Enthusiasts Forums (https://www.ford-trucks.com/forums/index.php)
-   6.4L Power Stroke Diesel (https://www.ford-trucks.com/forums/forum169/)
-   -   DPF modifications? (https://www.ford-trucks.com/forums/1286798-dpf-modifications.html)

parkland 12-31-2013 02:33 PM
Originally Posted by Mud Doc (Post 13899573)
put on a 4" from downpipe, thru an MBRP muffler and out. Hardly any louder, no regens, but not much gain in MPG.
Joe
Yeah I never put a muffler in mine, just straight pipe, and it's a little loud, and will drone a bit at a certain RPM, I think about 1400 but can't remember for sure.
Other than the drone, it's very quiet unless you get on it hard.


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