Exhaust
Its Comin Right for us!
Joined: Feb 2005
Posts: 12,135
Likes: 2,629
From: GA
these things are muffled by the emissions system, DOC, DPF & SCR, then straight pipe after the "spaceship". There is a small resonator in the tailpipe section, that offer little sound deadening and definitely does not restrict flow.
Doing anything to the exhaust is a waste of money if emissions equipment is staying on
Doing anything to the exhaust is a waste of money if emissions equipment is staying on
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Elder User
Joined: Jan 2017
Posts: 575
Likes: 1
these things are muffled by the emissions system, DOC, DPF & SCR, then straight pipe after the "spaceship". There is a small resonator in the tailpipe section, that offer little sound deadening and definitely does not restrict flow.
Doing anything to the exhaust is a waste of money if emissions equipment is staying on
Doing anything to the exhaust is a waste of money if emissions equipment is staying on
Im assuming straight piping is only advised after warranty haha
Hotshot
Joined: Apr 2013
Posts: 10,118
Likes: 650
From: NH
If there was a way to leave pilot injection off, these things would actually sound like a diesel all the time. On a cold morning, you will notice how much more diesel ping and knock you hear...then, all of a sudden, it hushes.
Post Fiend
Joined: Apr 2004
Posts: 5,158
Likes: 35
From: North of Salt Lake City
That's exactly what I'm seeing. On cold mornings this truck is very diesel-y but it doesn't last for long. It hushes right up after only a mile or two. It's clear that the Ford engineers are not worried about keeping the engine quiet all the time. My 2011 was quieter than the 2017 on cold mornings. But even warm the 2017 sounds better than the 2011. I think they hit the sweet spot between having an appropriate amount of clatter but still quiet enough not to notice it. Another thing is that the 2017 does not hiss on hard acceleration. I swapped out my dpf back exhaust on the 2011 because I really did not like that sound.
Cargo Master
Joined: May 2007
Posts: 3,336
Likes: 4
From: Western New York
If you look on the right door frame there is a certification that the vehicle meets Federal Noise Standards for diesel class vehicles. I love the sound of a diesel. I enjoyed my 7.3 for a quarter million miles. The erratic clatter of the older Caterpillars and the even knock of a KTA 400 Cummins was better than a symphony, not to mention a "Cackling Mack." Not so much the ear piercing scream of a Detroit, diesel's are an addiction. But after 45 years I am welcoming the near silence of this new truck. Normal conversations on the phone, normal conversations with Suzie, and the music sounds ten times clearer. You guys can enjoy striving for more noise, I appreciate the work done to quiet these truck down. 
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