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What are these black marks on exhaust.?
James
James
4d ago

What are these black marks on exhaust.?

What are these black little marks on my exhaust? Is it caused by heat or is it rust. Anyone had experience with something like this, usually polishing it gets em out but is there any solutions to stop this from happening or less frequently. Thanks

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  • Big Frank 4d ago
    There's a sealer for polished steel but l'm not sure how it holds up to heat. Its supposed to fill in all those voids and keep air from getting into it and causing the rust.
    Reply
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