Thread: Headers or Test pipes or both with stock exhaust?
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Old 12-15-2013, 05:43 PM   #50 (permalink)
andre12031948
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Quote:
Originally Posted by Megan370z View Post
Your statement is wrong.

the same exhaust heat is being thrown down the exhaust. it does not matter cats or not ... I shouldn't have added in my statement about heat because its wrong... because you cannot produce more heat after the combustion is done .... that 600F+ you are talking about is just at that location the heat will generally be (as per what you are saying) at 600F in the cats .. if you have a cats at the Y-pipe (xyz y-pipe) the heat will be less.. because its farther down the stream ....
That is correct but the test pipes at least get rid off the heated air much quicker. Imagine me helping him.
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