Im sure this is in this forum somewhere but I can't seem to find it. What interior can i convert my 03 OZ rally too? I was looking at buying a set of stock IX Mr front and rear seats but idk if they would fit. Or would my best bet be a VIII interior conversion because it is the same year?

 

seats from 9 and 8 would fit your car. back seats need some modification i think but just search

 

There is a sticky in the how to section for our lancer, for what you need to do to make the back seats from an evo fit into a base lancer, does not seem like a big task at all, and I know I saw one somewhere on how to mod your stock bracket to fit the front seats as well... Not sure where tho.
Evo IX MR seats... Leather... Amazing choice! It'll look great!!