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Old 09-29-2013, 09:45 AM   #1
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valve burning or warping myth true?

So if a straight pipe was ran with no muffler or cat...could it damage an engine...and I don't care about the legality of it cause its not going to see the street anyways.

I heard its possible with a high horsepower engine with a short pipe...but could it possibly happen in a stock i6 with piping at least to where the cat used to be?

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Old 09-29-2013, 08:06 PM   #2
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If the pipe was short enough that cold air could hit the valves and cool them very quickly, theoretically yes. Not likely, especially with a pipe as long as you plan.

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Old 09-29-2013, 08:09 PM   #3
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Quote:
Originally Posted by skeeter View Post
If the pipe was short enough that cold air could hit the valves and cool them very quickly, theoretically yes. Not likely, especially with a pipe as long as you plan.
One more question if it was just cut before the cat would the exhaust heat up my floor excessivly? Or would it be smarter to side pipe it?
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