downpiped

Password jdm has a jdm itr exhaust and says it is 2.35"...i thought the jdm itr exhaust was the still 2.25 in??? and it will fit an em1 (2000 si)...

roe

yes it will fit, all the bends fit just fine. you will have to have the muffler tip extended a little to come out from the bumper. sitting on the stock hangers, the tip will be about 3" short of the bumper. i dont recall if all the hangers lined up correctly, you may also have to have the flange altered at the cat. converter end depending on your cat/headers combo (the jdm and usdm flanges are 180 deg. off) i had this problem when i did the exhaust on my em1. also, my exhaust was modified to fit a different car when i first got it so i am unsure if you have to extend the length of the cat. (i bought a universal carsound cat and had it made to fit the application) any competent exhaust shop should be able to do this without any trouble. oh, and as for your question about the piping...honda called the ITR exhaust a 2.5" system, it measured 2.36"

EDIT: forgot pics











Modified by roe at 5:28 AM 6/8/2006

roe

there you go...hope that info helped. those are the best pics of mine that i could find. ill take some more specifically of the exhaust tomorrow when its bright out and post them up if you want.

k4ff1n3

DC5 itr exhaust on my em1...... it took alot of work to get it to fit though.

realis9

^ i always wanted to do that to my em1.

downpiped

Should I go the comptech catback or stay oem and get itr exhaust...I think comptechs is 2.25 and the itr is bigger but has bottlenecks?

roe

the ITR exhaust is QUIET...i had 2.25" piping with a no-name muffler and it was insanely loud for no reason. i put the ITR on because i was gettin pulled over all the time, now i can hear the people in my car, listen to the radio quietly and i got my bottom-end power back. i say unless you need a bigger, free-flowing exhaust for a reason, stay with something designed by honda.