Yo dude, Have a search
This is your best friend on the forum..
EK9.org JDM EK9 Honda Civic Type R Forum - Search Forums
Failing that, Google and Wikipedia may have some good information.
You may find it is not widely covered as most want to know the difference between EK4 and the EK9. of which there is masses of information on this forum
some basics are
EJ9 - D series engine.. SOHC - base model, wheel covers, no lips or spoilers, basic seats etc etc
EK4 - B series Engine DOHC Vtec, commonly known as the Vti in U.K Form, powerful Vtec engine, uprated suspension over EJ9, sportier inside, Colour coded bumpers etc etc
For this sort of thing you could even go on to something like parkers guide and bring up a Spec of each car, they are both very common car's and there should be a wealth of info on both all across the net