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i just straight piped my 05 f-350 and i wanted to know if it will still pass inspection
i've heard differently and need an answer
 

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I'm in Alberta, Canada. I know we have no testing here. I'm assuming you're in the US? Which state?
 

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No it wont but sometimes you can find someone who will let it slide.
 

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Depends on the state, in Illinois it is legal because all our law states is that we have a sound limiting device which is defined in the statute as a muffler AND/OR a turbo. I have no clue how a turbo compares to a muffler as a sound limiting device but according to illinois thats all you need to be legal :thumbup:

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After doing some searching for ya it looks like you will need a muffler in NC, i could not find any decibel limits though so you should be okay with a mbrp muffler something similar as long as there is some type of muffler on your truck

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No muffler required in nc its a saftey inspection only

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NCDOT inspection requires "all factory cat and mufflers be in place and in good working order or equivalant." This is the requirement for all vehicles manufactured in the last 15 years, vehicles older than 15 years only require the safety inspection, older than 35 years require no inspection.
 

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Don't you worry about it
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Nc only does a safety Inspection. No muffler or cat or anything required. My truck is straight piped and I have never had a problem. All they check is headlights turnsignals and horn and all the other safety stuff
 

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(a) Safety. A safety inspection of a motor vehicle consists of an inspection of the following equipment to determine if the vehicle has the equipment required by Part 9 of Article 3 of this Chapter and if the equipment is in a safe operating condition:
(1) Brakes, as required by G.S. 20‑124.
(2) Lights, as required by G.S. 20‑129 or G.S. 20‑129.1.
(3) Horn, as required by G.S. 20‑125(a).
(4) Steering mechanism, as required by G.S. 20‑123.1.
(5) Windows and windshield wipers, as required by G.S. 20‑127. To determine if a vehicle window meets the window tinting restrictions, a safety inspection mechanic must first determine, based on use of an automotive film check card or knowledge of window tinting techniques, if after‑factory tint has been applied to the window. If after‑factory tint has been applied, the mechanic must use a light meter approved by the Commissioner to determine if the window meets the window tinting restrictions.
(6) Directional signals, as required by G.S. 20‑125.1.
(7) Tires, as required by G.S. 20‑122.1.
(8) Mirrors, as required by G.S. 20‑126.
(9) Exhaust system and emissions control devices, as required by G.S. 20‑128. For a vehicle that is subject to an emissions inspection in addition to a safety inspection, a visual inspection of the vehicle's emissions control devices is included in the emissions inspection rather than the safety inspection.

§ 20‑128. Exhaust system and emissions control devices.
(a) No person shall drive a motor vehicle on a highway unless such motor vehicle is equipped with a muffler, or other exhaust system of the type installed at the time of manufacture, in good working order and in constant operation to prevent excessive or unusual noise, annoying smoke and smoke screens.
(b) It shall be unlawful to use a "muffler cut‑out" on any motor vehicle upon a highway.
(c) No motor vehicle registered in this State that was manufactured after model year 1967 shall be operated in this State unless it is equipped with emissions control devices that were installed on the vehicle at the time the vehicle was manufactured and these devices are properly connected.
(d) The requirements of subsection (c) of this section shall not apply if the emissions control devices have been removed for the purpose of converting the motor vehicle to operate on natural or liquefied petroleum gas or other modifications have been made in order to reduce air pollution and these modifications are approved by the Department of Environment and Natural Resources. (1937, c. 407, s. 91; 1971, c. 455, s. 1; 1983, c. 132; 1989, c. 727, s. 9; 1997‑443, s. 11A.119(a); 2000‑134, s. 6.)
Number 9 of the safety inspection requirements states a muffler is required by GS 20-128. (a) under 20-128 you must have a muffler if the vehicle was manufactured with a muffler.

Im not trying to argue with anyone simple want to educate. I too have been running strait piped for many years. Inspection stations are supposed to check to make sure you have a muffler under "safety inspection requirements", some dont but some will fail you for having strait pipes. If you know someone who will inspect it strait piped do so, most of us do. However understand you can get a ticket for it and that ticket costs $237.

You can google search these laws by entering ncgs 20-183.3 and ncgs 20-128. NCGS stands for North Carolina General Statutes.
 

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Don't you worry about it
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I've had a diesel truck with no muffler or cat for 7 years and have never once had any trouble out of it.
 

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Hopefully you never will. I have been running strait pipes for about 12 years, I was failed once and had to put my old exaust system back on to get it passed, then went back to strait pipes. I have never gone back to that inspection station. There was a guy on here who got a ticket from a young rookie trooper for not having a muffler, it happens. He did beat the ticket with a little help.
 

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I'll be done big time with no DPF
 

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The problem I had was after installing my old system to get my truck to pass, the inspection station still would not pass it because I had no cat. It took some work to convince the guy 7.3 are non catalyst motors.
 

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Safety inspection only on Diesel's in NC
 

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Where in NC are you?
 

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Never had issues on mine, and I have had stacks on mine and straight piped before since I bought it 5 years ago.
 

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NC only does safety inspection on diesels....you can have whatever exhaust...or lack there of, and it will pass inspection.
 

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If its a big deal, u can always V band a stright peice in for ur muffler or cat for inspection time to avoid having to remove the entire exhaust.
 

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I'm in nc....basically you're supposed to have a working cat and muffler....or the appearance of...

Obd2 gas vehicles must pass 7/10 readiness tests

Where are you located? I may be able to help ya

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