Muffler ?
Thread Starter
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Senior User
Joined: Jun 2018
Posts: 111
Likes: 2
Thanks for the details. Over time, each of us gets to know the other members and their trucks to differing degrees. It takes a bit more than a month for me. Since you mentioned changing from dually to SRW, I do have some memories of your previous posts. Even then, for future search, it is still good to post some details. Details put the thread in context, making the forum more valuable for future searches and drawing new members like you this year and like me last year.
For your needs, the 4" exhaust does make sense. So an OEM muffler won't fit anymore.
From my reading in the past, the MBRP is about the same volume as stock, perhaps a bit more aggressive. Banks is reported to be quieter, and Magnaflow is better still. Don't know the flow ratings for any of them. Also forget which one is priciest, recall one of them being about $300. The MBRP should be fine for your performance goals if it is quiet enough to live with.
I also see you have gears. They will help as long as the tires are stock size. Going oversize will reverse the benefit. I'm a big fan of gears.
While beyond the request for muffler info, I also suggest getting the tuning right for your current setup before swapping turbos. You may still need a different turbo to get where you want to be and it will require different tuning again for that mod. Dial in your current combo and see how you like it.
For your needs, the 4" exhaust does make sense. So an OEM muffler won't fit anymore.
From my reading in the past, the MBRP is about the same volume as stock, perhaps a bit more aggressive. Banks is reported to be quieter, and Magnaflow is better still. Don't know the flow ratings for any of them. Also forget which one is priciest, recall one of them being about $300. The MBRP should be fine for your performance goals if it is quiet enough to live with.
I also see you have gears. They will help as long as the tires are stock size. Going oversize will reverse the benefit. I'm a big fan of gears.
While beyond the request for muffler info, I also suggest getting the tuning right for your current setup before swapping turbos. You may still need a different turbo to get where you want to be and it will require different tuning again for that mod. Dial in your current combo and see how you like it.
Mountain Pass
Joined: Mar 2007
Posts: 163
Likes: 9
Handy1,
The muffler, while it can physically be installed either way, is defined by the manufacturer as a one way setup. When I installed mine I dropped by a local muffler shop to weld in the tail pipe to an adapter I had. He has sold and installed many of these over the years and confirmed the one way setup. Check out the flow picture at- https://www.brazelsrv.com/AT4040XL-A...onated-Muffler and verify that you have installed it in the correctly. Also check and see if yours was the XL(resonated) model, they make the same muffler without this feature and I understand that it tends to have a drone in the cab at certain rpms.
I'm happy with mine but being an old fart, I've lost a good part of my hearing over the years due to my diving and shooting hobbies.
Lewis
The muffler, while it can physically be installed either way, is defined by the manufacturer as a one way setup. When I installed mine I dropped by a local muffler shop to weld in the tail pipe to an adapter I had. He has sold and installed many of these over the years and confirmed the one way setup. Check out the flow picture at- https://www.brazelsrv.com/AT4040XL-A...onated-Muffler and verify that you have installed it in the correctly. Also check and see if yours was the XL(resonated) model, they make the same muffler without this feature and I understand that it tends to have a drone in the cab at certain rpms.
I'm happy with mine but being an old fart, I've lost a good part of my hearing over the years due to my diving and shooting hobbies.
Lewis
Cargo Master
Joined: May 2018
Posts: 2,442
Likes: 993
Have been running this setup on my Excursion. It has a 4" down pipe, 6.4 resonator with 4" ends, from there it goes into a 24"L X 8" body straight through muffler. No drone in the cab but has plenty of note.
Video of it running.
Video of it running.
Super Moderator
Joined: May 2004
Posts: 29,380
Likes: 118
From: Central Coast of CA
Along with what DRIB stated, another tip is to fill out your signature, like most of us do, listing the rig you have, it's pedigree and any mods you've done.
Now, you've responded to the dually question, but the part where you are throwing parts at your truck to make the tune run the engine correctly needs to stop, in my opinion. You need to have Jody adjust your tune so it runs the engine properly as is.
Stewart
Posting Guru
Joined: Jul 2017
Posts: 1,236
Likes: 2
It is still a good idea to put the details in each thread as needed. Mobile users can not see signatures.
You might also change trucks someday, so "details in my sig" might not make sense in the future. I admit to doing this transgression myself, until I learned about the mobile user issue.
You might also change trucks someday, so "details in my sig" might not make sense in the future. I admit to doing this transgression myself, until I learned about the mobile user issue.
Thread Starter
|
Senior User
Joined: Jun 2018
Posts: 111
Likes: 2
Handy1,
The muffler, while it can physically be installed either way, is defined by the manufacturer as a one way setup. When I installed mine I dropped by a local muffler shop to weld in the tail pipe to an adapter I had. He has sold and installed many of these over the years and confirmed the one way setup. Check out the flow picture at- https://www.brazelsrv.com/AT4040XL-A...onated-Muffler and verify that you have installed it in the correctly. Also check and see if yours was the XL(resonated) model, they make the same muffler without this feature and I understand that it tends to have a drone in the cab at certain rpms.
I'm happy with mine but being an old fart, I've lost a good part of my hearing over the years due to my diving and shooting hobbies.
Lewis
The muffler, while it can physically be installed either way, is defined by the manufacturer as a one way setup. When I installed mine I dropped by a local muffler shop to weld in the tail pipe to an adapter I had. He has sold and installed many of these over the years and confirmed the one way setup. Check out the flow picture at- https://www.brazelsrv.com/AT4040XL-A...onated-Muffler and verify that you have installed it in the correctly. Also check and see if yours was the XL(resonated) model, they make the same muffler without this feature and I understand that it tends to have a drone in the cab at certain rpms.
I'm happy with mine but being an old fart, I've lost a good part of my hearing over the years due to my diving and shooting hobbies.
Lewis
Thread Starter
|
Senior User
Joined: Jun 2018
Posts: 111
Likes: 2
Gotcha.
Along with what DRIB stated, another tip is to fill out your signature, like most of us do, listing the rig you have, it's pedigree and any mods you've done.
Now, you've responded to the dually question, but the part where you are throwing parts at your truck to make the tune run the engine correctly needs to stop, in my opinion. You need to have Jody adjust your tune so it runs the engine properly as is.
Stewart
Along with what DRIB stated, another tip is to fill out your signature, like most of us do, listing the rig you have, it's pedigree and any mods you've done.
Now, you've responded to the dually question, but the part where you are throwing parts at your truck to make the tune run the engine correctly needs to stop, in my opinion. You need to have Jody adjust your tune so it runs the engine properly as is.
Stewart
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Thread Starter
|
Senior User
Joined: Jun 2018
Posts: 111
Likes: 2
Have been running this setup on my Excursion. It has a 4" down pipe, 6.4 resonator with 4" ends, from there it goes into a 24"L X 8" body straight through muffler. No drone in the cab but has plenty of note.
Video of it running.
https://www.youtube.com/watch?v=zOe3...QqBsw&index=14
Video of it running.
https://www.youtube.com/watch?v=zOe3...QqBsw&index=14
Super Moderator
Joined: May 2004
Posts: 29,380
Likes: 118
From: Central Coast of CA
Judy said the 80 tune was good for around 6000 lbs towing, and the 60 tune was good for over 10,000lbs. If I stay in those guidelines, then there is no highEGT. The problem is I want to pull 10,000lbs in the 80 tune because it pulls with much more power and does a great job, but the EGT climbs to high on a hard pull and I have to back off the fuel.
Hope you get your truck running the way you like.
Good luck.
Stewart
Thread Starter
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Senior User
Joined: Jun 2018
Posts: 111
Likes: 2
Ok, so now we have MORE information. You're wanting more power, period. You are NOT chasing EGT issues when loaded, pulling a grade. It wasn't clear you're using your tunes outside the parameters of what the tuner has told you is allowable.
Hope you get your truck running the way you like.
Good luck.
Stewart
Hope you get your truck running the way you like.
Good luck.
Stewart
Thread Starter
|
Senior User
Joined: Jun 2018
Posts: 111
Likes: 2
Handy1,
The muffler, while it can physically be installed either way, is defined by the manufacturer as a one way setup. When I installed mine I dropped by a local muffler shop to weld in the tail pipe to an adapter I had. He has sold and installed many of these over the years and confirmed the one way setup. Check out the flow picture at- https://www.brazelsrv.com/AT4040XL-A...onated-Muffler and verify that you have installed it in the correctly. Also check and see if yours was the XL(resonated) model, they make the same muffler without this feature and I understand that it tends to have a drone in the cab at certain rpms.
I'm happy with mine but being an old fart, I've lost a good part of my hearing over the years due to my diving and shooting hobbies.
Lewis
The muffler, while it can physically be installed either way, is defined by the manufacturer as a one way setup. When I installed mine I dropped by a local muffler shop to weld in the tail pipe to an adapter I had. He has sold and installed many of these over the years and confirmed the one way setup. Check out the flow picture at- https://www.brazelsrv.com/AT4040XL-A...onated-Muffler and verify that you have installed it in the correctly. Also check and see if yours was the XL(resonated) model, they make the same muffler without this feature and I understand that it tends to have a drone in the cab at certain rpms.
I'm happy with mine but being an old fart, I've lost a good part of my hearing over the years due to my diving and shooting hobbies.
Lewis
Posting Guru
Joined: Jul 2017
Posts: 1,236
Likes: 2
The big problem with that is that the OP may have no clue as to what information is important in that thread, so you will get (and I have got) requests for more details. I'm just saying son't sweat it and go along with it. I've had absolutely amazing help from members here; help they have not been properly thanked for because I keep ending up in "rep jail." So I do what little I can to help others. I hope over time you can do the same.
OK, I know you had an old membership, and I probably did this already for Handy1, but Welcome to FTE!
Curious now which direction your muffler is mounted.
ETA:
Your post hit before mine.
Thread Starter
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Senior User
Joined: Jun 2018
Posts: 111
Likes: 2
Thanks for all the replies, This has helped me come up with a plan to experiment a little. I won't be out of much but some time. Hushpower muffler or the quiet muffler by MBRP seem to be the most recommended,with a google search. Some here and elsewhere seem to be using a resonator as well as a muffler.The aeroturbin muffler I have should work as a resonator. I will move it forward and add one of the mufflers mentioned , if this don't work I can remove the aeroturbin and just try try the muffler alone. I have a couple pieces of 4" stainless still exhaust pipe left over from the exhaust install a while back, so I won't be out of anything other than the new muffler. I drove my truck about 25 miles tonight and it is exhaust drone at 60 mph that is causing the noise that I can't stand. It will be a week or so before I get to this. I will get a muffler on order. Thanks for all the info.
Fleet Mechanic
Joined: Jul 2010
Posts: 1,753
Likes: 34
From: Los Angeles, Ca.
In cab noise is greatly effected by the exhaust outlet placement. If the exhaust ends under the truck it'll be louder inside, extend it out the back or side and it'll be quieter. If yours already extends outside the body then a quieter muffler is what you need.