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Exhaust Outlet

99ceraclassic

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99ceraclassic Enthusiast

99ceraclassic

Posted
Posted

I'm looking into a cat-back exhaust and have heard that exhaust outlets straight back are not recommended for towing. I would imagine for reasons that what ever your towing would get hot and dirty from the exhaust blowing staight onto your trailer. I was told it was more for people hauling livestock that you wouldn't want it straight back so they're not sucking up fumes. But I've seen people haul stuff all the time with straight back exhaust outlets. What do you guys think?

Darkanion Senior Enthusiast

Darkanion

Posted
Posted

While the two scenarios you laid out sound reasonable, I think it may also have to do with straight-back exhausts are going to reflect more off of whatever you're towing, causing more resonance in the truck, making your exhaust seem louder.

 

If you angle them out the sides, the sound-waves aren't going "straight back" into whatever you're towing.. horse trailer, camper, boat, whatever... So, it won't reflect "straight back" into the truck. The result would likely be what seems like a quieter exhaust.

certifiedcustom Enthusiast

certifiedcustom

Posted
Posted
I'm looking into a cat-back exhaust and have heard that exhaust outlets straight back are not recommended for towing. I would imagine for reasons that what ever your towing would get hot and dirty from the exhaust blowing staight onto your trailer. I was told it was more for people hauling livestock that you wouldn't want it straight back so they're not sucking up fumes. But I've seen people haul stuff all the time with straight back exhaust outlets. What do you guys think?

 

We have pulled sleds for years to upper Michigan with no problems. Watch that your tips do not stick out too far, as you may tend to brush up against them when they are toastie (and asking what's that burning smell...).

planorick Enthusiast

planorick

Posted
Posted

The following is from Flowmaster's website.

 

The Dangers of Carbon Monoxide

 

When an exhaust pipe exits directly to the rear of a vehicle, highly poisonous carbon monoxide gas may be drawn into the rear compartment. Even a slight opening or faulty gasket can allow significant exhaust fumes in. Check and replace seals regularly. This becomes even more dangerous when a side window is open which draws even more carbon monoxide gas inside. This applies also to vans, SUVs and station wagons. Rear exit exhaust systems should only be installed on pickups without camper shells or where camper shells are never used to carry people or animals. If you tow a trailer or carry passengers inside a camper shell in the back of your truck, you should select a single or dual side exit system. With rear exits you may find exhaust soot on the trailer you’re towing. And if you carry passengers in the back, you run the risk of carbon monoxide poisoning.

certifiedcustom Enthusiast

certifiedcustom

Posted
Posted
The following is from Flowmaster's website.

 

The Dangers of Carbon Monoxide

 

When an exhaust pipe exits directly to the rear of a vehicle, highly poisonous carbon monoxide gas may be drawn into the rear compartment. Even a slight opening or faulty gasket can allow significant exhaust fumes in. Check and replace seals regularly. This becomes even more dangerous when a side window is open which draws even more carbon monoxide gas inside. This applies also to vans, SUVs and station wagons. Rear exit exhaust systems should only be installed on pickups without camper shells or where camper shells are never used to carry people or animals. If you tow a trailer or carry passengers inside a camper shell in the back of your truck, you should select a single or dual side exit system. With rear exits you may find exhaust soot on the trailer you're towing. And if you carry passengers in the back, you run the risk of carbon monoxide poisoning.

 

That does sound very serious.

cowboybinkz71 Enthusiast

cowboybinkz71

Posted
Posted

To answer your question if you're towing a trailer that will be occupied then it's a bad idea to have the exhaust straight out the back. Like the above article said, you have a greater chance of carbon monoxide getting into the trailer. You will never see a truck hauling livestock with an exhaust straight out the back because the fumes are bad on the animals. In addition, for those of us with diesels, straight-out exhausts don't exist and if they did you'd have the carbon monoxide danger, as well as the fact that the front of the trailer would be covered in soot. If you're only towing some open, such as a bike trailer or a boat, then straight-out won't be a problem.

99ceraclassic Enthusiast

99ceraclassic

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Posted

That's the way I was thinking Cowboy, I'm mostly towing my John Deere LT110 riding mower. But if I ever had to tow a trailer for hayride at our church for instance I would hate for everyone to suck down the fumes. I wanted the Magnaflow straight back duals at Performance Products but I think I'll check around the local shops and see what I can find and have them bend the pipes at 45 or 90 degrees out the rear.

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