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Old 02-04-2014, 12:58 AM   #170
JDLAutoDesign
 
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Originally Posted by Captain Snooze View Post
@JDLUniversalDesignStudio
More questions for you :/
1/ I have read else where of an option for coating that involves both outside and inside of the pipe. Supposedly keeps the heat in better. What is your opinion on this?
2/ The flexi-joints bug me. Do they introduce any impediment to flow? How concerned would you be at producing these pipes without flexi-joints?

Thanks.
If you can afford the coating I would do it. Keeping the heat in helps keep up the velocity of the exhaust pules and will also keep the bay temps down. As for the flex sections on the header, have you seen how much it actually moves? Ive seen them move a significant amount with the car in neutral so I can only imagine how much more it would move with load on the engine.

Here is a break down of how they are laid out. They are the smoothest as possible while still allowing movement. For a street car I dont really recommend running without them. If it was a dedicated race car that gets refreshed after a few hard track days than that may be a different story

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