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White smoke on headers

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Old Sep 25, 2025 | 09:06 PM
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Default White smoke on headers

Hello, I bought a set of Speed Engineering headers and x pipe. I took off the stock headers and replaced them with the SE headers but unfortunately I had to re install the stock headers due to the x pipe getting delayed about a month and a half. After I started up the car with the stock headers installed there was a HUGE amount of white smoke and a slight burn g smell. I’ve read that it’s just oil from new headers but these are the stock ones. Shouldn’t the oil already be far gone by now? Should I let the car idle and for how long? Any advice would help, thanks!
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Old Sep 25, 2025 | 10:01 PM
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Wouldn't be from headers when not even on the car.

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Old Sep 25, 2025 | 10:12 PM
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Your hands get dirty and oils from your hands will be on the headers.
When they heat up, this all burns off.

All perfectly normal for exhaust work.
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Old Sep 30, 2025 | 10:26 AM
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Is the smoke literally coming OFF the stock manifolds or between the heads and manifolds? One side or both? If it literally coming from the stock manifolds let the exhaust fully heat up or with it cold spray liberaly wirh degreassr or brake cleaner to remove any oils.
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