I`ve tried the search-button, and I`ve looked at almost every post in this forum, and I still don`t understand the technical difference.
Only thing I can see in difference is the front, seats and something about the header...
PLEAZE help me!

 

right hand drive,and the engine has more compression i think,the front,Seats
not sure about the rest.

 

the exhaust has to be different too, right?
some people say the JDM ITR exhaust is 2.5 mandrel bent...
other people say it is the same as USDM...
i don't think they have catylitic converters on the JDM ITR...
but hey what do i know....
the collecter on the JDM header is 2.5 ...right?

i was planning to buy a quiet stock looking exhaust
so the JDM ITR exhaust sounded like a good idea...
but i hear different stories about the specs...

 

basically everything on the whole car is different. Too add to the list, wheels, sway bars, ecu, tranny, etc.

 

SgT knows.

 

The USDM is almost the same as the JDM 96spec except for the brakes, hub, wheels, seats, front end, and exhaust (that's all I can think of right now).
JDM 98spec is a different story. Lots of little different things.

 

The exhaust is the same on the JDM and USDM Type R's.

 

there are a lot of differences EVEN between the USDM ones, check this thread https://honda-tech.com/zerothread?id=193791&page=2

as far as the USDM v. JDM it too depends on years...
obviously exterior/interior features: lights, wheels, seats, right hand v. left hand, steering wheel, instrumental panel, no clock v. clock (hahaha), no armrest v. armrest (lol), side markers, .... there's probably a little more, but those are brief differences

in regards to engine, etc.: higher compression ratio for jdm (11.1 v. 10.6), stiffer valve springs for jdm, 2.25 (usdm) v. 2.5 collector for jdm in regards to exhaust, 4-1 header for jdm v. 4-2-1 for usdm, different final drive 4.785 (jdm) v. 4.400 (usdm) ... and there might me a lil' more for this too

hahaha and we get sucky octane gas!!!