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6.4L Power Stroke Diesel Engine fitted to 2008 - 2010 F250, F350 and F450 pickup trucks and F350 + Cab Chassis

DPF modifications?

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Old Dec 31, 2013 | 02:33 PM
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parkland
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Originally Posted by Mud Doc
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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