with audm exhaust and cat it would be too short to bolt on to jdm headers, regardless of inlet size. ie the jdm headers won't even reach the cat.
You might be able to get a pipe made up by an exhaust shop to extend the headers to meet the audm cat & exhaust, but I am unsure about this...
You might be better off going jdm cat and have the pipe after the cat, as per this picture posted earlier;
[IMG]http://i180.photobucket.com/albums/x229/JeffSiReal/DC2R/mini-
IMG_2978.jpg[/IMG]
As stated, getting a cat that is made to jdm standard (12" etc.) will be much cheaper than oem honda jdm cat.
A good example is the tegiwa high flow cat converter, on ebay for around $250
hope
this helped...
Bookmarks