I've had this cat and header for a 4th gen RSX sitting in my backyard and am looking to sell them, I'm not aware of the brands but the cat appears to be a Magnaflow or possibly other aftermarket brand (not stock right?), while the headers seem to be Jackson Racing possibly but likely aftermarket. They've both sat outside exposed to the elements and have debri and some rust inside, how much will this devalue them? Can I easily clean them to an extent? Could you give me a estimated value for how much they would sell for?

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