Chrome falling off the muffler

[Traffic22]

2nd the vote for Flitz or Never Dull, both are excellent products. If it’s really stubborn surface rust a very wet sos pad will get rig of it too. If not, warranty claim.

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[GregO]

2nd the vote for Flitz or Never Dull, both are excellent products. If it’s really stubborn surface rust a very wet sos pad will get rig of it too. If not, warranty claim.

If the ID turns out to be 400 series stainless which I think it is then a 3M 2S Fine unitized wheel on a straight shaft die grinder will cut the iron formation off the surface and leave a nice satin finish if done correctly.
Unfortunately iron formation will reappear over time being 400 series stainless contains a high amount of iron unlike 300 series stainless.

 

[GregO]

These are available in many sizes. The 2S Fine with a nice rounded edge will leave a very nice finish. I cleaned out my iron oxidized Gibson tips and painted the ID with VHT high temp ceramic exhaust paint.

 

[bateto_007]

Will try

 

[ChitownStang]

@bateto_007
@ChitownStang
Is there any rust on the outside of the tips or is the rust isolated to just the inside and tapered transition ?

Mines just on inside too, same as OP. It won’t buff out though

 

[GregO]

Mines just on inside too, same as OP. It won’t buff out though

Ok
If it is chrome there should be evidence of the plating edge lifting off the base material. Chrome is hard so it will peel or flake.

 

[ChitownStang]

Ok
If it is chrome there should be evidence of a plating edge lifting off the base material. Chrome is hard enough so it will peel or flake.

I’ll take a pic when I leave in about an hour

 

[GregO]

The more I look over the rust formation characteristic's in this exploded view I don’t see any sharp flaking or peeling of chrome. I see iron deposit growth on the upper surface. Typical rust forms underneath a chrome plated surface.
Hopefully you guys can rule out chrome, that’ll make cleaning up the inside tips a breeze and then apply a protective coating. Paint, ceramic sealer etc.

 

[ChitownStang]

Here’s a close I’m up in mine

 

[GregO]

Here’s a close I’m up in mine

The iron oxide stops right at the tip for a good distance. That would indicate the weld zone where 400 and 300 meet and a 300 series filler wire was used.

One thing to try is to take a magnet and test to see if the outer diameter tip is less magnetic than the inside diameter.
300 will be mildly magnetic whereas 400 will be highly magnetic.

 

[ChitownStang]

The iron oxide stops right at the tip for a good distance. That would indicate the weld zone where 400 and 300 meet and a 300 series filler wire was used.

One thing to try is to take a magnet and test to see if the outer diameter tip is less magnetic than the inside diameter.
300 will be mildly magnetic whereas 400 will be highly magnetic.

Interesting, I’m going to try that.
So, what’s the best way to clean this up you think, still Filtz?

 

[GregO]

Interesting, I’m going to try that.
So, what’s the best way to clean this up you think, still Filtz?

Scotch-Brite 2S Fine to cut the iron oxide off surface if it’s truly 400 series followed by a mother’s foam polishing ball with Flitz.
Flitz is king when buffing properly prepped stainless.

 

[WD Pro]

The iron oxide stops right at the tip for a good distance. That would indicate the weld zone where 400 and 300 meet and a 300 series filler wire was used.

One thing to try is to take a magnet and test to see if the outer diameter tip is less magnetic than the inside diameter.
300 will be mildly magnetic whereas 400 will be highly magnetic.

I think you are correct, and there is defo a welded joint in that area, have a look at this thread :

https://www.mustang6g.com/forums/threads/exhaust-tips.192364/#post-3861809

WD

 

[GregO]

I think you are correct, and there is defo a welded joint in that area, have a look at this thread :

https://www.mustang6g.com/forums/threads/exhaust-tips.192364/#post-3861809

WD

Yup, someone polished right through the weld on that picture !

 

[Crew4991]

Crazy that the exhaust tips are rusting on such new cars.

Imagine what they are going to look like once the cars get old...

Hang in there everyone!

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