Another exhaust thread

Machete · Dec 6, 2018

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 · Dec 6, 2018

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 · Dec 6, 2018

Dynomax Super Turbo mufflers. Love them.

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Machete · Dec 6, 2018

hammerg26 said:
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 · Dec 6, 2018

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

Machete · Dec 6, 2018

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

Thank you

Machete · Dec 9, 2018

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 · Dec 9, 2018

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

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98eb5.4 · Dec 10, 2018

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

some folks go single cats

Machete · Dec 14, 2018

1955moose said:
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.

Another exhaust thread

Machete

My Rig. 2000 EB 4x4 5.4L

1955moose

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hammerg26

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Machete

My Rig. 2000 EB 4x4 5.4L

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Machete

My Rig. 2000 EB 4x4 5.4L

Machete

My Rig. 2000 EB 4x4 5.4L

1955moose

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98eb5.4

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Machete

My Rig. 2000 EB 4x4 5.4L

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