Dual Exhaust

[checkmate05]

I purchased a new 2005 2500HD 6.0 about 7 months ago and i am deciding to put dual exhaust on it. i was just wondering how/what size piping did some of you use on the driver's side going over the 4:10 around the gas tank and over the rear end. i would like to keep the 3 to 3.5 exhaust piping if possible. Can someone help me/ show me pics of your ehxaust going over the axel. I am also trying to find someone to bend that big of piping.

[Mark_in_Tulsa]

I purchased a new 2005 2500HD 6.0 about 7 months ago and i am deciding to put dual exhaust on it. i was just wondering how/what size piping did some of you use on the driver's side going over the 4:10 around the gas tank and over the rear end.  i would like to keep the 3 to 3.5 exhaust piping if possible.  Can someone help me/ show me pics of your ehxaust going over the axel. I am also trying to find someone to bend that big of piping.

 

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If your going to go with duals and that big of pipe, then your going to lose a lot of low end power, and mpg.

[snoman]

I purchased a new 2005 2500HD 6.0 about 7 months ago and i am deciding to put dual exhaust on it. i was just wondering how/what size piping did some of you use on the driver's side going over the 4:10 around the gas tank and over the rear end.  i would like to keep the 3 to 3.5 exhaust piping if possible.  Can someone help me/ show me pics of your ehxaust going over the axel. I am also trying to find someone to bend that big of piping.

 

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If your going to go with duals and that big of pipe, then your going to lose a lot of low end power, and mpg.

 

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Ditto, you will really loose a lot. Use 2.25 if you want to minimize power loss and then put big tips on end. My suggestion is to replace existing muffle with on with dual outlets as true dual will hurt low end torque and city MPG. That engien is well tuned from intake to exhaust and if you are looking for a magic power boost, you will not find it there. Also if you plan bigger tires, that 4.10 will not be deep enough if you want good power and big tires.

[checkmate05]

I purchased a new 2005 2500HD 6.0 about 7 months ago and i am deciding to put dual exhaust on it. i was just wondering how/what size piping did some of you use on the driver's side going over the 4:10 around the gas tank and over the rear end.  i would like to keep the 3 to 3.5 exhaust piping if possible.  Can someone help me/ show me pics of your ehxaust going over the axel. I am also trying to find someone to bend that big of piping.

 

<{POST_SNAPBACK}>

 

 

 

 

If your going to go with duals and that big of pipe, then your going to lose a lot of low end power, and mpg.

 

<{POST_SNAPBACK}>

 

 

 

 

 

Ditto, you will really loose a lot. Use 2.25 if you want to minimize power loss and then put big tips on end. My suggestion is to replace existing muffle with on with dual outlets as true dual will hurt low end torque and city MPG. That engien is well tuned from intake to exhaust and if you are looking for a magic power boost, you will not find it there. Also if you plan bigger tires, that 4.10 will not be deep enough if you want good power and big tires.

 

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So, to my benefit, i should replace the muffler, and on my outlets go 2.25 and bend around my rear end and add the tips that are about 3? I guess that would work but my truck sits high and i thought it wouldn't look good, but i guess it isn't also about looks. Thanks i apreciate the help!

[snoman]

I purchased a new 2005 2500HD 6.0 about 7 months ago and i am deciding to put dual exhaust on it. i was just wondering how/what size piping did some of you use on the driver's side going over the 4:10 around the gas tank and over the rear end.  i would like to keep the 3 to 3.5 exhaust piping if possible.  Can someone help me/ show me pics of your ehxaust going over the axel. I am also trying to find someone to bend that big of piping.

 

<{POST_SNAPBACK}>

 

 

 

 

If your going to go with duals and that big of pipe, then your going to lose a lot of low end power, and mpg.

 

<{POST_SNAPBACK}>

 

 

 

 

 

Ditto, you will really loose a lot. Use 2.25 if you want to minimize power loss and then put big tips on end. My suggestion is to replace existing muffle with on with dual outlets as true dual will hurt low end torque and city MPG. That engien is well tuned from intake to exhaust and if you are looking for a magic power boost, you will not find it there. Also if you plan bigger tires, that 4.10 will not be deep enough if you want good power and big tires.

 

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So, to my benefit, i should replace the muffler, and on my outlets go 2.25 and bend around my rear end and add the tips that are about 3? I guess that would work but my truck sits high and i thought it wouldn't look good, but i guess it isn't also about looks. Thanks i apreciate the help!

 

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You are on the right page here though you could go 2 1/2 with a dual outlet muffler setup. It would give you the best of both worlds. FlowMaster makes a few nice muffler that would work for you. I have had one on my old burb for 6 years now with 3 inch in and out and 3 inch pipe through and I have been quite happy with it. (the extra piping for dual outlets or true duals add too much clutter under 4x4 rigs for me and like stated eariler, true duals can hurt perfomance sometimes)

[Deere_Daze]

I agree with not going with huge pipes. You are going to lose performance and IMO smaller pipes sound better. If you want the look of big pipes, just put tips on.

Ive got cat-back duals on my F-150 with a Flowmaster 50 Series single-in, dual-out muffler and it works well. Its got a nice mellow tone.

On my truck they ran the pipes over each side of the rear end and then they run straight out the back.

I like my duals and a lot of other people seem to like how my exhaust sounds too. I live in a small town and everybody knows my truck. Whenever I go into a bar people are like, "Hey, arent you that guy who drives that big green Ford with the dual exhaust?" Im not sure if thats a good thing, or a bad thing.

[checkmate05]

I agree with not going with huge pipes.  You are going to lose performance and IMO smaller pipes sound better.  If you want the look of big pipes, just put tips on.

Ive got cat-back duals on my F-150 with a Flowmaster 50 Series single-in, dual-out muffler and it works well.  Its got a nice mellow tone.

On my truck they ran the pipes over each side of the rear end and then they run straight out the back. 

I like my duals and a lot of other people seem to like how my exhaust sounds too.  I live in a small town and everybody knows my truck.  Whenever I go into a bar people are like, "Hey, arent you that guy who drives that big green Ford with the dual exhaust?"  Im not sure if thats a good thing, or a bad thing.

 

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I was wondering if anyone has tried the magnaflow (part # 15829) and how did it sound. I heard/read that the 6.0 is a loud motor and it's sound had to be dampend from factory. Just wondering opinions on magnaflow vs. flowmaster.

[Deere_Daze]

I personally think Magnaflows are loud due to their "straight though" design.

I like the way Magnaflows sound, but I like loud exhaust.

[snoman]

I personally think Magnaflows are loud due to their "straight though" design. 

I like the way Magnaflows sound, but I like loud exhaust.

 

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Something to remember about these type of mufflers, if you ever plan to off road out west they are quite illegal for offraod usage because they have no spark arresting abilty and if you are caught in a area requiring, you will be towed and not allowed to drive out. Alsoa little back pressure is better than none most of the time so no performace is gained with them over a nice Flow Master or Flow Pro Muffler

[5Alive]

I purchased a new 2005 2500HD 6.0 about 7 months ago and i am deciding to put dual exhaust on it...

 

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I also have a 2005 2500 with a 6.0/4.10, and the exhaust on my rig already came dual from the factory, with separate catalytic converters for each exhaust pipe and all. It runs discreet dual from the engine, through all the cats, all the way into, and then out of, the muffler. After the muffler there is a Y pipe that combines the seperate exhaust tracts into one large diameter tube to make the trip over the axle and out the side.

 

I've often read how important a crossover or "Y" pipe is in dualled exhaust systems, as the exhaust pulses from one cylinder bank of the engine help "scavenge" the exhaust from the opposite engine bank of cylinders... due to the firing order that crosses back and forth across the V. Some sort of venturi effect comes into play there, I recall reading.

 

I've never seen a factory exhaust system fail within the first 10 years of a truck's life, but I've often seen aftermarket exhaust systems on brand new trucks making lots sparks while being dragged along the highway, presumably from poor materials or poor workmanship, or both.

 

I've also read on RV forums where people have had flat tires on a long roadtrip in the middle of nowhere, only to be further stranded and surprised by the fact that their new, never used spare tire tucked under the truck has been rendered burnt and useless by the artfully dodgy routing of their fancy aftermarket dual exhaust tubing routed over to the driver's side and to the rear.

 

So, it's hard for me to see the sense in tossing perfectly good 409 stainless steel, manufactured to last for longest term emmissions warranty mandated by law (7-10 years), designed specifically for the chassis and all of it's options, engineered for optimal performance in a variety of real world conditions, routed and supported with weight, vibration, and thermal elongation accounted for considering the spherical zone of clearance between it and other chassis components like brake lines, evaportive fuel lines, and spare tires... I'm just not seeing the logic to changing the exhaust on a new truck.

 

Maybe in the 1970's, yes, it did make sense to me back then.

[snoman]

I've often read how important a crossover or "Y" pipe is in dualled exhaust systems, as the exhaust pulses from one cylinder bank of the engine help "scavenge" the exhaust from the opposite engine bank of cylinders... due to the firing order that crosses back and forth across the V.  Some sort of venturi effect comes into play there, I recall reading.

 

The correct term is "X" pipe or cross over. It does not increase the savanging, it actually increase the bask pressure at lower RPMs and improves responce and torque and it alos smooths out the sound. If you blow off the pressure too quickly at lower RPM's engine efficnecy decreases and so does power output and MPG. Above 3000 RPM or so it is not as much a factr but below 3000 RPM it is. Back in the 60's some factory cars with dual exhausts came with cross overs or "X" pipes install in them from factory.

[5Alive]

I've seen "X" pipes, both OE and aftermarket. They were shaped like an X, and crossed over, just like you describe. After they crossed over, usually at a point about under the driver/passenger area right after the down pipes from the headers or exhaust manifolds, they then continued along their separate paths through seperate cats, mufflers, cherry bombs, or what have you for the rest of the exhaust tract.

 

My 2500 however, happens to have a "Y" pipe. It is shaped like a Y, not an X. It joins two inlet pipes into one outlet pipe, and continues as one outlet pipe for the short distance over the axle to the exit tip.

[checkmate05]

I've seen "X" pipes, both OE and aftermarket.  They were shaped like an X, and crossed over, just like you describe.  After they crossed over, usually at a point about under the driver/passenger area right after the down pipes from the headers or exhaust manifolds, they then continued along their separate paths through seperate cats, mufflers, cherry bombs, or what have you for the rest of the exhaust tract.

 

My 2500 however, happens to have a "Y" pipe.  It is shaped like a Y, not an X.  It joins two inlet pipes into one outlet pipe, and continues as one outlet pipe for the short distance over the axle to the exit tip.

 

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i thought i read that even though the muffler is dual in and dual out, the dual in chambers into one part of the "Y" and the other outlet isfor the back pressure...i think, don't qote me on that.. i wouldl love to have the nice chrome tips out the back but more i think, i don't know if paying money and taking off a perfect exhaust and adding something i don't even know f i'll like, such as the magnaflow. i have been thinking hard and thats why i started this subject to see what others have done to their 05 with the exhaust. My exhaust gets a little bit deeper more i drive but it only has 5575 miles on it ( i have a beater to drive back and forth to work) Does anyone know how/where to get a magnaflow exhast kit cheaper than 599.99(thats off ebay)? I just like the deep tone, but i want it quiet ennough at ideal but perfect tone when i gun it to pass that ricer with a cherrybomb exhaust!!

[snoman]

I've seen "X" pipes, both OE and aftermarket.  They were shaped like an X, and crossed over, just like you describe.  After they crossed over, usually at a point about under the driver/passenger area right after the down pipes from the headers or exhaust manifolds, they then continued along their separate paths through seperate cats, mufflers, cherry bombs, or what have you for the rest of the exhaust tract.

 

My 2500 however, happens to have a "Y" pipe.  It is shaped like a Y, not an X.  It joins two inlet pipes into one outlet pipe, and continues as one outlet pipe for the short distance over the axle to the exit tip.

 

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i thought i read that even though the muffler is dual in and dual out, the dual in chambers into one part of the "Y" and the other outlet isfor the back pressure...i think, don't qote me on that.. i wouldl love to have the nice chrome tips out the back but more i think, i don't know if paying money and taking off a perfect exhaust and adding something i don't even know f i'll like, such as the magnaflow. i have been thinking hard and thats why i started this subject to see what others have done to their 05 with the exhaust. My exhaust gets a little bit deeper more i drive but it only has 5575 miles on it ( i have a beater to drive back and forth to work) Does anyone know how/where to get a magnaflow exhast kit cheaper than 599.99(thats off ebay)? I just like the deep tone, but i want it quiet ennough at ideal but perfect tone when i gun it to pass that ricer with a cherrybomb exhaust!!

 

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If you have a truck that uses dual down pipes to muffler, a dual in and dual out can work well for you (my 2000 K3500 with a 5.7 has dual down pipes to muffler)