Quote:
Originally Posted by travislambert
It all depends on how hard you run the car. Running the car hard on a road course will push the temperatures beyond anything you can ever reach on the street or drag strip. There's also a big difference in participating in a track day and pushing the car to its limit at a track day. This is where differences in design quality and design deficiencies are most likely to surface. OEMs conduct this type of testing with pro drivers who can push the cars. Most aftermarket companies do not have the drivers or the resources for this type of validation.
I've never seen aftermarket headers that wouldn't get hot enough to damage nearby components when the car is pushed. That's a big reason why OEMs don't use that design. They use heavier designs with lots of heat shields. If they didn't they'd have many of warranty claims from guys who frequent the road courses.
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That's what the Jet-Hot coating is for. I went with the extreme 2500f coating. It works amazingly well.