What might be trailing from this exhaust pipe?

[Shel_B]

A friend sent me these pics a short while ago and asked if I had any idea what might be trailing from this exhaust pipe. I'm clueless other than to think it may be some fiberglass from an aftermarket muffler. Are "glass packs" still being marketed or used?

 

[clinebarger]

There are several aftermarket mufflers that use fiberglass.

 

[ctechbob]

Several people with 5th gen Rangers have had factory packing leave their stock mufflers. Why or how no one knows, but it happens.

This is what is inside a 5th gen Ranger muffler.

 

[clinebarger]

Wasn't aware of OEM's using fiberglass. And it is a Ford judging from the rear differential.

 

[Shel_B]

This is what is inside a 5th gen Ranger muffler.

Very helpful, thanks. What's the highlighted piece?

 

[ctechbob]

Very helpful, thanks. What's the highlighted piece?

View attachment 203313

Some kind of spring-loaded flapper that opens up when pressure rises in the exhaust. Supposed to let it flow a little better when really romping on it.

 

[oldhp]

Some kind of spring-loaded flapper that opens up when pressure rises in the exhaust. Supposed to let it flow a little better when really romping on it.

I thought that was a doppler vortex pressure equalizer.

 

[ctechbob]

I thought that was a doppler vortex pressure equalizer.

I think it is just a newer version of the original Retro Encabulator

 

[Speedbird001]

I want to say that was more common in older / muscle cars (no cats and colder / “wetter” exhaust)… the muffler packing would get wet and freeze overnight, then if you floored it before fully warming up it could do damage. I partially ruptured a decent set of hemi mufflers once, this could have been a factor

 

[malibuguy79]

Happens on alot of Fords. The Expedition rear resonators did this alot.

Muffler packing coming out...typically from a broken or rotten core.

 

[D60]

Several people with 5th gen Rangers have had factory packing leave their stock mufflers. Why or how no one knows, but it happens.

This is what is inside a 5th gen Ranger muffler.

View attachment 203306

We put the MBRP system on this '19. I was actually impressed as far as build and fit. Doesn't sound the least bit obnoxious IMO. Does it actually improve performance? No idea, but probably not. I just appreciated the simpler, straightforward design.