pipe between muffler and resonator looks strange

[NoHaveMSG]

Originally Posted by Ultramaroon

lol...


you totally win

My response was slow. 3/10, would not bang.

Is it really winning in banter

[Ultramaroon]

Originally Posted by NoHaveMSG

My response was slow. 3/10, would not bang.

Is it really winning in banter

it's win/win winning

[RToyo86]

A drill wire brush goes a long way cleaning that up.
I periodically hit flanges and pipes to clean up the metal a bit.

[soundman98]

Originally Posted by RToyo86

A drill wire brush goes a long way cleaning that up.
I periodically hit flanges and pipes to clean up the metal a bit.

that method also continually exposes a fresh layer of metal to the same demise...

[NoHaveMSG]

You can wet it with nitric acid, then neutralize and clean. It will delay the corrosion by dissolving the free irons in the surface of the material. That’s a lot of work for a part that is still going to last another 20 years with no additional work.


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[ghostzfh]

Originally Posted by NoHaveMSG

You can wet it with nitric acid, then neutralize and clean. It will delay the corrosion by dissolving the free irons in the surface of the material. That’s a lot of work for a part that is still going to last another 20 years with no additional work.


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That's true. I could wipe it down with some citric acid and sand it all down, and then hit it with some anti rust spray or something, but it's probably not worth worrying too much about.

[Yoshoobaroo]

Originally Posted by NoHaveMSG

You can wet it with nitric acid, then neutralize and clean. It will delay the corrosion by dissolving the free irons in the surface of the material. That’s a lot of work for a part that is still going to last another 20 years with no additional work.


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So at home passivating? I don’t think that works on aluminized steels

[NoHaveMSG]

Originally Posted by Yoshoobaroo

So at home passivating? I don’t think that works on aluminized steels

Yeah, for the mid pipe. Nothing you can do for the muffler but paint it.

[Yoshoobaroo]

Originally Posted by NoHaveMSG

Yeah, for the mid pipe. Nothing you can do for the muffler but paint it.

Do we know what’s made of what? I didn’t think OEMs used stainless in exhausts at all.

[NoHaveMSG]

Originally Posted by Yoshoobaroo

Do we know what’s made of what? I didn’t think OEMs used stainless in exhausts at all.

It’s stainless until the rear muffler. Dunno what
grade.


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[RickBH]

"It’s stainless until the rear muffler. Dunno what
grade."

Mufflers and pipes are often made of 409 stainless steel by manufacturers. it has a lot less nickel so it is much cheaper. It does surface rust and will flake off but does not often get holes like carbon steel pipes.

The first uses of 409 in exhaust systems was probably on industrial exhaust systems like for industrial gas turbines. Silencers for gas turbines is where I first saw it.