I’m using a full JDM ITR exhaust, header all the way back to the muffler on my 01 ITR. One, the muffler tip sticks out a lot more than what I’m used to seeing. Two, the b pipe hangers don’t seem to be in the right place.

My ctr exhaust for ek9 wouldn't bolt to a usdm cat on the 3 bolt flange side. The studs were spaced slightly wider it was slightly bigger due to the 2.5 cat. My friend had a shorty cat that looked identical to a jdm itr and that is what he believed it to be. Wouldn't fit my oem b pipe. Steve from hmo got me the right one . I see people say they bolted the jdm exhaust on the dc2 and that always has me scratching my head how? Did the 98 spec convert to 2.5 catalytic converter? Then again the ek9 didn't get the 98 spec dc2 header. I know the jdm and usdm are different lengths on the b pipe for the integra, but no one ever mentions that demon 3 bolt flange. Was the ek9 the only one with the bigger 3 bolt flange maybe? I had read they were all the same, but from my experience I saw two oem cats with two different 3 bolt flange sides. One would bolt to a usdm 3 flange exhaust that you see on all 88-00 civics or integras. The other wouldn't. It's been a while but I thought Steve told me ek9 and dc2 used the same cat. I could be wrong. It's been a long time. If they are the same I don't understand how people bolted the b pipe to the cat without modification to one of the flanges. I know I am talking about a different car but the catalytic converter is said to be the same which makes me curious how people are bolting the cat back without the jdm cat?

This link shows the jdm 3 flange vs audm.

http://www.ozhonda.com/forum/showthread.php?162296-DC2R-JDM-amp-AUDM-oem-exhaust-differences

I am totally digging that b pipe with the extra resonater. From the pics it's new as well.