Well, I used to drive a 2002 Spec V (and no, its not a "spec 5" like all the ******** liked to call it here in KY )
Anyway, I just remembered that the spec v had a header with a catalytic converter built into it....and THEN I remembered that alot of people had problems with the cat decomposing....and flowing through the exhaust valves into the engine....(after many, many miles of serious driving)
Now...this may have just been a flawed design....but Its enough to make me seriously consider that strup header.
Thoughts, ideas, peanut gallery comments? All are welcome in my threads
EDIT : If this has been covered in a TSB I apologize, feel free to delete.