Quiet muffler??

Kelli25 · Apr 5, 2013

Is there a muffler out there that is more performance based than sound based?
Im really happy with the lack of exhaust sound in the cab (SCSB) of my truck, but would love to free up a little of the exhaust. Ill be doing the Y-pipe mod at the same time. Any suggestions?

I installed a Corsa cat back system on my old Chevy years ago and was really pleased. All stainless steel mandrel bent stuff. And I cant remember any real increase of the interior volume. Outside the truck sounded great (especially when cramming the gas pedal) and I felt an increase in throttle responce and HPs. Thats really what im lookin for here. Just really nervous to ruin the comfort of my cab while driving. And I also dig the look of the stock exhaust tips, so I will probably stick to a simple muffler change/y-pipe change. Unless there is a good reason to do otherwise.

And could someone explain what the heck these resonators are?
What is their purpose?
Where are they located?
Do they affect the performance?
Do they affect the sound?

Sorry for the barage of questions.

Any help at all will be greatly appreciated.

SILVER_BULLET · Apr 5, 2013

a 24 inch magnaflow will flow well and give you a deeper tone while still being quiet but if youve had corsa and liked that why not get a set for this truck?

Chewy · Apr 5, 2013

It's VERY VERY VERY hard to beat Corsa!!! They are one of if not the best out there. Take a look at how their mufflers are designed. They are designed to be drone free, yet offer straight through performance. It IS what's going on my G8 next.

My RAM is getting a 24" Mufflex Magnaflow and I'm keeping the resonators as well. It'll have the V8 growl when I want it, but be quiet when I don't. It's cheap, and easy to install.

Copied and Pasted form eHow:

Resonator
A resonator is smaller than a muffler, but of similar construction. Whereas a muffler is usually oval-shaped, a resonator is round. There are different types of resonators, but they are generally constructed of steel or stainless steel and have fiberglass matting packed into the construction. The resonator does not so much have an affect on the muffler as it does on the sound of the exhaust.

Purpose
Like a muffler, the purpose of a resonator is noise management. A resonator can be used to soften the tone of an exhaust. For example, many performance exhaust systems use a larger diameter exhaust combined with a more free-flowing muffler. A resonator will also be used between the catalytic converter and the muffler to mellow the exhaust sound. A resonator should be installed by a professional muffler shop.

They don't have much if any effect of performance. They're really meant for canceling certain noise issues.

The RAM's resonators are mounted right behind the axle.

Hemi450hp · Apr 5, 2013

I don't think you can go wrong with Corsa or Magnaflow when looking at their catback systems. The magnaflow catback has the sound you are looking for. It uses a 5x11 22" muffler which is tame in the cab, but noticeable when you step on the pedal. It is also completely stainless from the piping, to the clamps, to the muffler, to the tips. It is mandrel bent as well and is also a bit cheaper than the Corsa.

Either way, I think you are headed in the right direction with your exhaust choices.

Kelli25 · Apr 6, 2013

SILVER_BULLET said:
a 24 inch magnaflow will flow well and give you a deeper tone while still being quiet but if youve had corsa and liked that why not get a set for this truck?

Well, as I said, I had corsa on a different truck. Ive listened to clips of corsa on the Dodge and Im not loving it. Clips are hard to judge, but still. Plus Im pretty sure they only do the full cat back systems, and im happy with the current setup. (minus the y pipe and restrictive stock muffler). I may be wrong on that. But I remember going through that the last time. But again, that was years ago so things may have changed.

But I was actually leaning towards that 24 inch magnaflow. Is there any feedback on cabin resonance? I read a few reviews that seemed pretty solid.

Hemi450hp · Apr 6, 2013

The 22" Magnaflow muffler they use in their catback is actually quieter than the 24". The reason why is because the 22" has a 5x11" casing whereas the 24" has a smaller 5x8 casing.

Kelli25 · Apr 6, 2013

Chewy said:
It's VERY VERY VERY hard to beat Corsa!!! They are one of if not the best out there. Take a look at how their mufflers are designed. They are designed to be drone free, yet offer straight through performance. It IS what's going on my G8 next.

My RAM is getting a 24" Mufflex Magnaflow and I'm keeping the resonators as well. It'll have the V8 growl when I want it, but be quiet when I don't. It's cheap, and easy to install.

Copied and Pasted form eHow:

Resonator
A resonator is smaller than a muffler, but of similar construction. Whereas a muffler is usually oval-shaped, a resonator is round. There are different types of resonators, but they are generally constructed of steel or stainless steel and have fiberglass matting packed into the construction. The resonator does not so much have an affect on the muffler as it does on the sound of the exhaust.

Purpose
Like a muffler, the purpose of a resonator is noise management. A resonator can be used to soften the tone of an exhaust. For example, many performance exhaust systems use a larger diameter exhaust combined with a more free-flowing muffler. A resonator will also be used between the catalytic converter and the muffler to mellow the exhaust sound. A resonator should be installed by a professional muffler shop.

They don't have much if any effect of performance. They're really meant for canceling certain noise issues.

The RAM's resonators are mounted right behind the axle.

Thanks for the info man.

Seems like something with fibrerglass matting packed in it would be at least a little restrictive? I dont know. Ha. I dont wanna change too much though. So I will probably leave them.

My biggest fear is having the exhaust sound "Floppy". I know its super hard to describe sound with words, but its the closest word I can think of to describe it. I want it to growl and sound mean. But not be "Loose" and "Floppy"

Anyways, I will prolly try out the Magnaflow and see what that does for me.

Kelli25 · Apr 6, 2013

Hemi450hp said:
I don't think you can go wrong with Corsa or Magnaflow when looking at their catback systems. The magnaflow catback has the sound you are looking for. It uses a 5x11 22" muffler which is tame in the cab, but noticeable when you step on the pedal. It is also completely stainless from the piping, to the clamps, to the muffler, to the tips. It is mandrel bent as well and is also a bit cheaper than the Corsa.

Either way, I think you are headed in the right direction with your exhaust choices.

Thank you sir.

So this catback sytem from Magnaflow is using essentially the 24 inch muffler I was thinking of? If the tips and resonators and what not are all as good or better than stock, then I might just do that.

I have not been under the truck yet, but I would imagine that the manifolds come down into the y pipe that I need to replace, then to the cat, then to the stock restrictive muffler that I need to replace, then two pipes out of that going to the back of truck and out at the bumper. With the resonators being somewhere in the mix?

Please correct if Im wrong. Thats all just guesswork.

Kelli25 · Apr 6, 2013

And thanks for the input and info fellas. I really appreciate the help. Experience is the best teacher. Im glad this forum is around. Otherwise I would be making a lot more mistakes with this stuff.

Hemi450hp · Apr 6, 2013

The stock setup consists of the exhaust manifolds, then you have 2 cats (1 on each side), which then goes down to your y-pipe, then to your muffler, then to the resonators, and finally to the tips.

The Magnaflow catback systems bolt onto the back side of the y-pipe, and replace everything all the way to the 5" tips that you can only get with their kit. IMO, they are my favorite 5" tips as well. The muffler they use in this kit is 22" long and has a 5x11" body.

hankthetank2012 · Apr 6, 2013

How much does that magnaflow cat back go for?

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Kelli25 · Apr 6, 2013

Hemi450hp said:
The stock setup consists of the exhaust manifolds, then you have 2 cats (1 on each side), which then goes down to your y-pipe, then to your muffler, then to the resonators, and finally to the tips.

The Magnaflow catback systems bolt onto the back side of the y-pipe, and replace everything all the way to the 5" tips that you can only get with their kit. IMO, they are my favorite 5" tips as well. The muffler they use in this kit is 22" long and has a 5x11" body.

Wow. I wasnt expecting two cats. You think there is room to run two pipes all the way back? I know a great muffler shop. Wouldnt be mandrel, but with without a y pipe and a single muffler, it would still flow like crazy. That might actually be too much flow. Maybe not though..

So there are two resonators as well huh? So if there were room, I could go straight from the exaust manifold to the cat to the muffler to the resonator then out the tip at the back. Do that on each side and be rockin.

And if there isnt room and I did the Magnaflow castback, will those tips fit in the current space in the bumper? Surely they would right?

Hemi450hp · Apr 6, 2013

hankthetank2012 said:
How much does that magnaflow cat back go for?

Sent from my SPH-D700 using Tapatalk 2

The Magnaflow kit with 5" tips is $727.30.

Magnaflow Catback Exhaust 2009-2013 Dodge Ram 1500 Dual Rear Exit catback exhaust with 22" muffler and dual 5" polished stainless steel tips

Many people see the price and get scared off, but if you think about it, most guys have an easy $250-$300 into just the 5" tips and adapters which IMO are not as nice as what you get with the Magnaflow kit. All together, it is a very high quality kit that can be installed in the driveway where you know it will be done right.

Hemi450hp · Apr 6, 2013

Kelli25 said:
Wow. I wasnt expecting two cats. You think there is room to run two pipes all the way back? I know a great muffler shop. Wouldnt be mandrel, but with without a y pipe and a single muffler, it would still flow like crazy. That might actually be too much flow. Maybe not though..

So there are two resonators as well huh? So if there were room, I could go straight from the exaust manifold to the cat to the muffler to the resonator then out the tip at the back. Do that on each side and be rockin.

And if there isnt room and I did the Magnaflow castback, will those tips fit in the current space in the bumper? Surely they would right?

You could run true duals, but it is just overkill IMO unless you plan to add boost or nitrous. There are quite a few guys running true duals, but I just haven't seen the gains to be worth the extra cost unless you are moving a ton of air with boost or nitrous.

And here is a pic of the 5" Magnaflow tips...

limited · Apr 6, 2013

thanks for the info,, do you get the Y pipe with full cat back kit on Magflow??

Chewy · Apr 6, 2013

I installed a 14" Mufflex today on a members truck with him, and I'd call it anything but loud. You could hear it, but it wasn't intrusive unless really on it. I bought a 24" which must be darn near silent. Perfect for me! I just want some growl and I'm not all hung up on getting every last bit of HP. That's what my car is for.

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Hemi450hp · Apr 6, 2013

limited said:
thanks for the info,, do you get the Y pipe with full cat back kit on Magflow??

The y-pipe is separate, but I will go ahead and toss 1 in for free for you if you decide to go with the Magnaflow catback. We have plenty of each in stock.

Kelli25 · Apr 7, 2013

Hemi450hp said:
You could run true duals, but it is just overkill IMO unless you plan to add boost or nitrous. There are quite a few guys running true duals, but I just haven't seen the gains to be worth the extra cost unless you are moving a ton of air with boost or nitrous.

And here is a pic of the 5" Magnaflow tips...

Thanks Matt.

That pic looks nice. Starting to really consider this catback...

Hemi450hp · Apr 7, 2013

No problem. If you decide to go this route, put your member name in the order notes so that I can add you to the monthly drawing, and I will also include the Y-pipe for free.

Quiet muffler??

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