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Dec 9, 2011 | 11:56 AM

spooky01

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From: Lancaster

straight pipe

Any disadvantage of running without a muffler?

Dec 9, 2011 | 12:08 PM

timmyboy76

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nuth'n that i can think of, considering, the turbo acts like a muffler, to begin with.

Dec 9, 2011 | 01:01 PM

Robert6401

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Other than being obnoxiously loud at times and having a drone when towing, no issues with it. Hope to go with an actual system before long with a muffler.

Dec 9, 2011 | 01:04 PM

timmyboy76

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Hey Bob, is yours dumped under the truck, cause mine was before, and experimented what you just posted, but when i extended it to the bumper, i dont get that effect anymore?

Dec 9, 2011 | 01:25 PM

Robert6401

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No, I had the muffler removed and a piece of straightpipe welded into its place. Still dumps in stock location.

Dec 9, 2011 | 03:09 PM

CAPTAIN DIESEL

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Joined: Sep 2011

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Quote:

Originally Posted by Robert6401

Other than being obnoxiously loud at times and having a drone when towing, no issues with it. Hope to go with an actual system before long with a muffler.

Obnoxiously loud? With a turbo? Maybe u needs u a durd cummins

7.3 turbo without a muff is a thing of beauty, kinda sounds like angles singing

Dec 9, 2011 | 05:05 PM

mongo75

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Joined: Jul 2006

Posts: 3,754

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From: Indianapolis

I love my straight pipe, a slight drone depending on rpm when pulling, but nothing you don't get used to. It's not that much louder though. I took out the muffler and put a pieice of pipe there.

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Dec 9, 2011 | 07:08 PM

1duallyman

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Joined: Jan 2011

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loud pipes save lives

Dec 9, 2011 | 08:23 PM

#10

SkySkiJason

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Joined: Jul 2008

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From: N.GA Mountains

My dually has been straightpiped for over 200k miles - best cheap mod ever. I got a free piece of stock 3.5" exhaust and paid muffler man $40 to put it in place of stock muffler. No 'drone' with my flatbed, but the drone in my X from the MBRP is kinda annoying. I'm not sure straightpiped stock would be worse, since the 4" system is much louder overall...

FWIW, there is no performance advantage going stock straightpipe to 4" system, just more noise.