Chambered vs straight-through muffler issue?

bassheadhemi · May 282019

A few weeks ago I decided to try the Flowmaster 50HDcoming from multiple (MagnaflowBorlaAfe) straight-through mufflers the first thing I noticed is that it had more torque under 2500 rpm. I did a few WOT pull and it didn't felt as strong as beforebut could have been in my head.

Nowlast week I've hooked up 2000lbs to the truck and it instantly felt like I was pulling a lot more. I've pulled the same 2000lbs before and could barely notice it on regular acceleration. Tried to do a 60-90 on the highway and the truck now definitely struggle up topbefore it would pull now it's mostly just noise

Truck have ARH LT with HF cats and 91 tuneI've ordered another Magnaflow 22" and will try again and hope it's just the muffler that is too restrictive.

gdawg55 · May 282019

I've had multiple mufflers as well. I now have a Flowmaster 50HD and noticed that my truck has a little better overall response. Pickup seems a little more instantaneous compared to the straight thru designs I had on before. Granted my truck is stock except for the muffler change. Not sure if your LT headers and high flow cats could make a differencebut I guess it's possible.

6speed4.7 · May 292019

Hey Bass
You’re back to single exitright?

bassheadhemi · May 292019

6speed4.7 said:
Hey Bass
You’re back to single exitright?

Yupprefer the tone of the single 3"but need something that's not brutal on cold start since the truck is literally right on the neighbor house

Sent from my SM-N950W using Tapatalk

bassheadhemi · May 292019

gdawg55 said:
I've had multiple mufflers as well. I now have a Flowmaster 50HD and noticed that my truck has a little better overall response. Pickup seems a little more instantaneous compared to the straight thru designs I had on before. Granted my truck is stock except for the muffler change. Not sure if your LT headers and high flow cats could make a differencebut I guess it's possible.

In the city the 50HD is great. An electric cutout would be a solutionbut from what I read they are all crap when it comes to cold climate(freeze/corrode)

Nick@GotExhaust · May 292019

Chambered mufflers will not flow anywhere near as well as a straight thru especially with a heavy load and higher in the rpms.

Not sure if a direct bolt in muffler kit will work for you but for a straight thru design that isnt too loud I would recommend this
https://gotexhaust.com/i-23647005-s...assembly-2009-2018-ram-1500-hemi-pick-up.html

We have some other optionslet me know if we can help

blackbetty14 · May 292019

The flowMaster is more restrictive which helps with low rpm scavaging which promotes low end tq production. The higher flowing straight through mufflers offer much less restriction and thus shift the scavaging and flow into a higher rpm hence they they pull up top. For a 350cuin motor like the 5.7 Hemi a good balance for low rpm grunt and decent mid to upper breathing would be some long tubes with a smaller primary like a 1 5/8” OD. Too many people jump to a 1 3/4 or 1 7/8” and loose low end where u spend 90% of the time.

blackbetty14 · May 292019

Nick@GotExhaust said:
Chambered mufflers will not flow anywhere near as well as a straight thru especially with a heavy load and higher in the rpms.

Not sure if a direct bolt in muffler kit will work for you but for a straight thru design that isnt too loud I would recommend this
https://gotexhaust.com/i-23647005-s...assembly-2009-2018-ram-1500-hemi-pick-up.html

We have some other optionslet me know if we can help

Is that muffler 304 or 409ss? What about the tubing?

bassheadhemi · May 292019

Nick@GotExhaust said:
Chambered mufflers will not flow anywhere near as well as a straight thru especially with a heavy load and higher in the rpms.

Not sure if a direct bolt in muffler kit will work for you but for a straight thru design that isnt too loud I would recommend this
https://gotexhaust.com/i-23647005-s...assembly-2009-2018-ram-1500-hemi-pick-up.html

We have some other optionslet me know if we can help

too bad they don't make their mach 82 ( 22" 5x11) muffler in 3" in/out.

How does the mach 34 compare in loudness to an 18" Magnaflow?

Sent from my SM-N950W using Tapatalk

Nick@GotExhaust · May 302019

bassheadhemi said:
too bad they don't make their mach 82 ( 22" 5x11) muffler in 3" in/out.

How does the mach 34 compare in loudness to an 18" Magnaflow?

Sent from my SM-N950W using Tapatalk

I havent heard the 2 next to each other but I would say they are very close in volumealmost the same. Tone is similar as well

blackbetty14 · May 302019

Nick@GotExhaust said:
I havent heard the 2 next to each other but I would say they are very close in volumealmost the same. Tone is similar as well

Is that solo muffler you linked to 304 or 409SS? And the piping?

HammerHead · May 302019

bassheadhemi said:
A few weeks ago I decided to try the Flowmaster 50HDcoming from multiple (MagnaflowBorlaAfe) straight-through mufflers the first thing I noticed is that it had more torque under 2500 rpm. I did a few WOT pull and it didn't felt as strong as beforebut could have been in my head.

Nowlast week I've hooked up 2000lbs to the truck and it instantly felt like I was pulling a lot more. I've pulled the same 2000lbs before and could barely notice it on regular acceleration. Tried to do a 60-90 on the highway and the truck now definitely struggle up topbefore it would pull now it's mostly just noise

Truck have ARH LT with HF cats and 91 tuneI've ordered another Magnaflow 22" and will try again and hope it's just the muffler that is too restrictive.

That’s the same thing I went through on my old 2013. But I had an off brand chambered muffler on first and the low end was awesome. After that I did a muffler delete straight through and lost on the bottom end Big Time; but from 60-120mph it would dig like a mother. It all depends on where you want the powerup high or down low.

McBroom · May 302019

I swear up n down about my Solo Exhaust. It’s ****** awesome. Excellent power and sound through the entire power band.
I’ve had it on a year and a half and still love it. I have a few videos of it on the YouTube just search my name or Solo Exhaust Delete Kit

I love my truck!
Blue Mule 18 Ram 4x4 C/C
Tradesman Power Wagon

blackbetty14 · May 302019

McBroom said:
I swear up n down about my Solo Exhaust. It’s ****** awesome. Excellent power and sound through the entire power band.
I’ve had it on a year and a half and still love it. I have a few videos of it on the YouTube just search my name or Solo Exhaust Delete Kit

I love my truck!
Blue Mule 18 Ram 4x4 C/C
Tradesman Power Wagon

Do you know if the exhaust is

McBroom said:
I swear up n down about my Solo Exhaust. It’s ****** awesome. Excellent power and sound through the entire power band.
I’ve had it on a year and a half and still love it. I have a few videos of it on the YouTube just search my name or Solo Exhaust Delete Kit

I love my truck!
Blue Mule 18 Ram 4x4 C/C
Tradesman Power Wagon

do you know If the muffler and pipes are 409 or 304 stainless? Idk why no one can answer this lol

Nick@GotExhaust · May 302019

blackbetty14 said:
Is that solo muffler you linked to 304 or 409SS? And the piping?

Muffler is 304 and i believe the piping is 409

bassheadhemi · May 302019

So installed the replacement 22" Magnaflow and bam! power is back up top. Glad it was just that...

I prefer it this way1st with the 8speed and 3.92 doesn't need much to get you moving and I can manually shift to keep the rev higher.

buddy guy · May 302019

wowbasshead. that's pretty wild how much difference it made!

bassheadhemi · May 302019

buddy guy said:
wowbasshead. that's pretty wild how much difference it made!

YeahI was really worried that something was wrong.

I guess I'll simply replace my Magnaflow every 2 yearsbut since I didn't install the tail pipe this time and dump in front of the axle with the exit oriented at the bottomthe muffler should not fill itself with water/condensation and freeze next winter.

ram1500rsm · Jun 12019

There is a reason many people in the performance community refer to Flowmaster as Crapmaster or Chokemasterat least referring to the 1040 and 50 and everything else in the chambered series. They have a straight through design as well so at least that one should not suck the performance out of you motor up top

bassheadhemi · Jun 22019

ram1500rsm said:
There is a reason many people in the performance community refer to Flowmaster as Crapmaster or Chokemasterat least referring to the 1040 and 50 and everything else in the chambered series. They have a straight through design as well so at least that one should not suck the performance out of you motor up top

With LT yeah the 50 HD was too restrictive and kill the gain of the LT. On a stock truck it should be fine IMO.

On another notelove the dump at the muffleryesterday when a kid (A guess since I could only see the roof) was revving is 4 banger beside me at the lightlight switched to green and the exhaust literally blown dust from the ground and leaving him in the dust.

Chambered vs straight-through muffler issue?

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