Another exhaust thread

[Machete]

While inspecting the fluid changes the other day (front/rear diffs, transfer case, engine oil) I noticed a slit on the outside of my original muffler. There wasn't much rust at all along the cat back pipe, flange/bolts etc which is surprising given Im around Chicago where they salt.

Everything Ive searched points to people going with either a Flowmaster or Magnaflo but what recommendations are there for OEM sound. I don't really need loud and from reading there really isn't any "felt in the pants" performance improvement with those louder cat-backs.

Simple chain retail muffler shops? I dont want to start spitting codes or create more problems that dont exist.

What experiences do folks have? Thanks.

 

[1955moose]

I had Flowmaster 3 chamber mufflers on a 86 mustang 5.0 way back. All the performance mufflers are louder, hard to get around that. The power was a little better in the mid and top end, but I lost bottom end power. The stock mufflers were actually pretty good breathing.

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[hammerg26]

Dynomax Super Turbo mufflers. Love them.


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[Machete]

Dynomax Super Turbo mufflers. Love them.


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After spending hours doing research I’ve learned the Dynomax is almost identical to Magnaflow in that they’re both SS, straight pass-through flow w insulation packing except Magnaflow uses a mix of SS in packing material vs proprietary fiberglass blend in the Dynomax.

The sound and performance are almost identical except the Dynomax provides more back pressure on the exhaust valves which preserves low end torque.

All this at less than half the price for complete SISO cat back !

 

[ExplorerTom]

If you do anything after the cats, it won't effect any codes.

 

[Machete]

If you do anything after the cats, it won't effect any codes.

Thank you

 

[Machete]

UPDATE:

So I decided and ordered the Walker Quiet Flo SS cat back system. Walker owns Dynomax and other companies w exhaust muffler products. Both the Walker Quite Flow SS and Dynomax are 3 chambered mufflers. The main difference I liked in the Walker is that it’s SS, and a direct OE fitment and the whole setup including new ubolt style clamps was $187.00. Need to find a nice SS tip now.
Will try to take pics and post a audio after install.

 

[1955moose]

Let us know how it runs after? Same, better. Hopefully not worse.

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[98eb5.4]

If you do anything after the cats, it won't effect any codes.

some folks go single cats

 

[Machete]

Let us know how it runs after? Same, better. Hopefully not worse.

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Just picked up my truck from my Indy. It definitely sounds “better”.

Inside the cabin is much quieter and when I got on it driving home the sound was much deeper and smoother. Smooth meaning the dft dft dft from the small hole in muffler is gone.

I am very happy w this product. It was a direct fit w the hangars already welded in the right place and the middle pipe and exhaust pipe were perfect.

Best part was my mechanic said that for original exhaust w 184,*** mi it wasn’t that bad and that my truck is the cleanest he’s seen.

I would recommend this Walker SS Quiet Flo muffler and kit. $187.00 including the clamps from idCAR. Installation $100.00 cash.

 

[1955moose]

Glad it worked out. Have to remember that one for my,2000. Was their any power increase? Or did that part stay the same?

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[Machete]

Glad it worked out. Have to remember that one for my,2000. Was their any power increase? Or did that part stay the same?

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I wouldn’t say power “increase” but it did improve back to OE spec. I used to know when my son pulled in to the garage by the low rumble, now you can’t tell the truck is pulling in.

I was just going to start a new thread asking why are these trucks so slow.

 

[1955moose]

Keep in mind if you've got the 4.6 smaller motor, depending on your year. 99 and newer had only 240 horses, less on 97,98. Mine has 260 with the bigger 5.4 motor. Trying to propel a 5800 pound sheet metal brick down the road isn't easy, especially climbing grades. Mine feels fine till I climb a freeway grade. The newer 05-08's got bumped to 300 hp, 09-14 are the zippiest with 310 ponies. Considering your engine if the smaller one, you never stated a year or motor in your posts, was actually put in Crown vics and mustangs, vehicles that are 2,000 pounds lighter, it's amazing they torque along as well as they do.

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[Machete]

Yup. I have 5.4

 

[crazyjerry]

I have a 97 5.4 expedition and have mellow roar to it, i thought it had a after market muffler on it until look under it for something else and a big hole in the muffler, need to change it, going for something a little more quiet. still working on my door locks, so far i have 3 bad switches on the doors, no fun changes them.

 

[Wal92tt]

After paying off bills due to Christmas, I'm planing on installing the Cherry Bomb Vortex muffler on my 1999 EB 5.4 4x4 myself. With 231,*** miles, the stock muffler has a long rust slit along the seam. Sounds like crap to me but our kids like it?
Here's a video I found while researching. It has four mufflers swapped out for sound comparison, except it's on a Chevy 5.3 Silverado. The Vortex starts around the 10min mark. I've been able to find it pretty cheap from about $30-40 too!

Has anyone installed the Vortex on a 5.4 here? Thoughts/opinions....?

 

[Trainmaster]

My problem with Walker is their mufflers tend to be loud, no matter how they are advertised and I've had more than one "stainless" ones rot off the car in less than 24 months. Used to be a good, Pennsylvania company. I don't know what happened to them.

 

[hammerg26]

After paying off bills due to Christmas, I'm planing on installing the Cherry Bomb Vortex muffler on my 1999 EB 5.4 4x4 myself. With 231,*** miles, the stock muffler has a long rust slit along the seam. Sounds like crap to me but our kids like it?
Here's a video I found while researching. It has four mufflers swapped out for sound comparison, except it's on a Chevy 5.3 Silverado. The Vortex starts around the 10min mark. I've been able to find it pretty cheap from about $30-40 too!

Has anyone installed the Vortex on a 5.4 here? Thoughts/opinions....?

I have the Dynomax Super Turbos and love them.


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[TobyU]

Any of the really thick flowmaster style ones will work pretty well. The ones like a tank are what I like. The thin standard muffler style rust out too quickly.
I had to look up the vortex.
When I hear Cherry Bomb I think or the original ones. Glass pack tube mufflers.
They almost never rust out and you can rip them off and go "Walking Tall" style if you need to.
They are a little loud but might be ok improvement over open muffler or pipes.
They use to be 16.97-19.99 each, but I used to weigh 165lbs too.

 

[Machete]

My problem with Walker is their mufflers tend to be loud, no matter how they are advertised and I've had more than one "stainless" ones rot off the car in less than 24 months. Used to be a good, Pennsylvania company. I don't know what happened to them.

This one is very quiet. Don’t know how long this Walker SS muffler will last but I’ll post if it falls off anytime soon!