new muffler
11-08-2005, 06:46 PM
#31
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Dynomax Billet Race muffler for around $40 bucks.....awesome sound, deeper but not raspy like straight piped. Little drone but not too bad while towing my 10,000lb 5th wheel. 
HUMP
HUMP
11-08-2005, 08:00 PM
#32
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I put the mbpr replacement muffler on mine, left the kitty, lots of compliments, hardly know its there, pulled 5k with it this weekend 500 miles, no drone, heard it good pulling a few hills, of course I was running 85, thinking of pulling the cat but I'm afraid of going too loud myself at that point
11-08-2005, 08:02 PM
#33
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Originally Posted by TexasCTD
Welcome to DTR! I, too, am following this thread. I am about to install an AFE Stage 2 pg 7 and also install a straight through muffler. I had all but decided to go with the Magnaflow. I don't want a drone problem. But, if I left the kitty intact, would that most likely eliminate any problems with a drone? i am referring to the cat and whatever other muffler gets installed, including a Mag? I guess I am sort of asking.....would the kitty do the same job as the Aeroturbine some guys are putting at the down pipe in front of the donaldson's or Mags or whatever? I have heard that eliminating the kitty (in and of itself) really doesn't buy you much performance gain. Thoughts?
Hi TexasCTD,
Thanks for the welcome.
Where you thinking of the 30 inch Mag too, or a shorter one?
The Nelson 86131M 51" straight threw no baffle muffler is on my short list, but I'm concerned that it will be stock loudness. I would not mind the exhaust being a little louder than the engine IMO.
11-08-2005, 08:05 PM
#34
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Originally Posted by hump
Dynomax Billet Race muffler for around $40 bucks.....awesome sound, deeper but not raspy like straight piped. Little drone but not too bad while towing my 10,000lb 5th wheel.
HUMP
HUMP
So the little bit of drone you get, is it all the time or just up hills with the 5er?
Thanks
11-08-2005, 11:49 PM
#35
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Originally Posted by 67Charger383HP
Hi TexasCTD,
Thanks for the welcome.
Where you thinking of the 30 inch Mag too, or a shorter one?
The Nelson 86131M 51" straight threw no baffle muffler is on my short list, but I'm concerned that it will be stock loudness. I would not mind the exhaust being a little louder than the engine IMO.
Thanks for the welcome.
Where you thinking of the 30 inch Mag too, or a shorter one?
The Nelson 86131M 51" straight threw no baffle muffler is on my short list, but I'm concerned that it will be stock loudness. I would not mind the exhaust being a little louder than the engine IMO.
I saw a magnaflow at the Dallas RV show. There was a guy there who runs a diesel performance shop in Ft. Worth who had set up a booth displaying the Banks Monster Exhaust (real expensive) and Magnaflow. I didn't measure them, but 30'' sounds about right. How many models do they make? I would still consider the Nelson/Donaldson too.
I am tired of talking about it and thinking about it. I am ready to Git-R-Done...LOL. I have been to focused on other areas of the truck, but now it's time for air and exhaust.
11-09-2005, 12:47 AM
#36
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Originally Posted by 67Charger383HP
Hi TexasCTD,
Thanks for the welcome.
Where you thinking of the 30 inch Mag too, or a shorter one?
The Nelson 86131M 51" straight threw no baffle muffler is on my short list, but I'm concerned that it will be stock loudness. I would not mind the exhaust being a little louder than the engine IMO.
Thanks for the welcome.
Where you thinking of the 30 inch Mag too, or a shorter one?
The Nelson 86131M 51" straight threw no baffle muffler is on my short list, but I'm concerned that it will be stock loudness. I would not mind the exhaust being a little louder than the engine IMO.
11-09-2005, 01:38 AM
#37
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Originally Posted by TexasCTD
I saw a magnaflow at the Dallas RV show. There was a guy there who runs a diesel performance shop in Ft. Worth who had set up a booth displaying the Banks Monster Exhaust (real expensive) and Magnaflow. I didn't measure them, but 30'' sounds about right. How many models do they make? I would still consider the Nelson/Donaldson too.
I am tired of talking about it and thinking about it. I am ready to Git-R-Done...LOL. I have been to focused on other areas of the truck, but now it's time for air and exhaust.
I am tired of talking about it and thinking about it. I am ready to Git-R-Done...LOL. I have been to focused on other areas of the truck, but now it's time for air and exhaust.
Lots of threads on it and I'm tired already from searching. Not many talking about the different Magnaflow lengths or with sound clips of Mag, from the searching I have done so far.The following are Magnaflow part numbers (Stainless) for there 7 inch round diesel mufflers. The first number is the length of the can; the second number is the overall length with pipe stubs sticking out both ends.
24" 30" 14772
20" 27" 14771
30" 36" 14773
14" 20" 14770
11-09-2005, 01:42 AM
#38
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Originally Posted by Big Bob
It will be a little louder, but still pleasant while towing. Sounds like the Nelson 86131M is the muffler for you. It is for me!
Did that muffler come center in center out?
I'm concerned that it will not fit as I have a short bed crew. I guess I'd better start doing some research on the Nelson now too...
11-09-2005, 09:06 AM
#39
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Originally Posted by 67Charger383HP
Hey Big Bob,
Did that muffler come center in center out?
I'm concerned that it will not fit as I have a short bed crew. I guess I'd better start doing some research on the Nelson now too...
Did that muffler come center in center out?
I'm concerned that it will not fit as I have a short bed crew. I guess I'd better start doing some research on the Nelson now too...
11-09-2005, 09:36 AM
#40
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67Charger383HP
The only drone is when I am towing the 5th wheel up a decent grade otherwise it's fairly quiet in the cab but with the windows down....well that's another story
HUMP
HUMP
11-09-2005, 10:50 PM
#41
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Originally Posted by hump
Dynomax Billet Race muffler for around $40 bucks.....awesome sound, deeper but not raspy like straight piped. Little drone but not too bad while towing my 10,000lb 5th wheel.
HUMP
HUMP
Thanks for describing how your muffler can be loud at times. I'm still leaning toward a muffler that is not too big and quiet.
I see the specs are 16.5 long on that. I'm thinking that the bigger Mag in any length will muffle more than the Dynomax. Would you agree on that assumption?
11-09-2005, 10:54 PM
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Originally Posted by Car_nut57
We stock 4" SS off-set pipes which are 44" tip to tip which will allow the use of a straight through muffler with the correct off-set.
I could do it at home, and still may knowing I can get the pipe shipped to me, but I believe I have pretty much decided to use Bob's Muffler in Bakersfield. They can do Mandrel in 4 inch SS, and are within a day trip of Vegas all total. Unless they are not well liked here, then who knows.
11-10-2005, 07:35 PM
#44
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67Charger383HP
I would think that a longer muffler will be more quiet than a short one only because the exhaust will quiet down more when going through a long muffler rather than a short one. So to answer your question, yes the Magnaflow will muffle the exhaust more than the Dynomax Billet Race muffler. 
HUMP
HUMP