muffler delete How loud is it?
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Elder User
Joined: Apr 2004
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muffler delete How loud is it?
i have the cat delete and i dont really think its any louder and thats good.
thinking about doing the muffler.i have seen a MPG gain without the cat and hoping for the same without the muffler.But i dont want the truck annoying loud or a drone while driving.
thinking about doing the muffler.i have seen a MPG gain without the cat and hoping for the same without the muffler.But i dont want the truck annoying loud or a drone while driving.
Elder User
Joined: Mar 2005
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im running straight pipe just went to it about 3 weeks ago from no cat muffler only and i can tell you its a big difference specially when you hit about 2000-2300 rpms its makes a pretty loud sounds i like it though
Laughing Gas
Joined: Oct 2007
Posts: 990
Likes: 1
From: North Pole Alaska
MBRP has a muffler delete pipe
Originally Posted by hd4ever
Were did you get the straight pipe and did you weld it in? Any mileage gains?
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Junior User
Joined: Mar 2005
Posts: 70
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From: Louisiana
I run no cat no muffler, cut it off right after I got the truck its alittle louder but its a diesel. I don't know how much I picked up in mileage, couldn't have been a significant amount.
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Junior User
Joined: Dec 2007
Posts: 68
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From: Secor, Illinois
You can buy a "test pipe" from Ford for about $60 and just bolts on, no cutting. As for the muffler go to a custom exhaust place and get a piece of pipe or have them put it on. My 05 6.0 is all strait and from inside the cab its a little louder, not much unless you romp on it! 03 and 04 have the loud whistle. You should, I repeat should gain mpg, if you really try. Its hard to stay off the loud pedal though!!
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