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Kirkham Motorsports

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Old 05-09-2017, 12:01 PM
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Default Exhaust issues

I am not a car guy so bare with me, our cobra has the bare metal exhaust pipes and they are rusting bad enough to give it a texture and its rusting really bad where the four headers meet up into the big pipe, how can i remove this rust and prevent it from occurring again.

Secondly, i know this is probably not an exhaust but i have a small mechanical issue, the right exhaust is significantly lower toned than normal and it backfires every now and then. My best guess is that one or more cylinders arent firing into that half of the engine. But id like to know what you guys think.

Thank you for any help you can give or constructive criticism on my garbage forum using skills.
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Old 05-09-2017, 12:36 PM
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Cobra Make, Engine: Unique 427 S/C, Dart 427W "Replica" Ford engine
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I don't know if you have the skills to do this, but here goes: take your headers and side-pipes off of the car, check everything over for slag and funky welds and clean them up, then find a local company that does ceramic coating (your local Cobra club can advise you) and drive, don't ship, them there. I only say this because I've heard too many horror stories of pipes that were damaged in shipping. If your pipes are flanged this is a good time to clean up the interface between headers and side-pipes.
Most good shops can offer you a choice of colors to match your car. While the pipes are being done this is a good time to poke around under the hood for what's causing your back-firing which, I suspect, is caused by vacuum leaks so I would look for loose bolts on the heads and intake, and then leaky gaskets. There is a huge amount of info on the Web to help you. Good luck.
Bill
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Old 05-09-2017, 04:27 PM
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I second the suggestion to pull them and send them out for ceramic coating. They will sandblast them before coating and will look virtually new when returned.
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