From the Evo VIII & IX interior, what is a direct fit into a 04 ES?

 

everything

except the rear seats, they need some slight modification

 

Do you know what exactly needs to be modified?

 

^Mainly the bracketary, aka the hardware to attach it all. But if I remember right, it's only one thing because the Evos didn't offer fold down rear seats. So you have that difference to contend with. Other than, sweeeet addition!

 

My rear seats don't fold down either, that I have found anyways.

 

You need to buy new clips for the bottom seat (bench.)
They cost about 5 bucks for two. (I think I payed 3 bucks actually.)

The rear (back) of the seat needs to be tampered with.
In my car it fits into place snug, just 'cus its wider than the Lancer seat;
however theres a slight gap between it and the bench.

 

+1 to everyone, everything but the back seat is a direct fit. I wouldnt do it unless you swapped out all the panels and even the seatbelts because it doesnt look good miss-matched.

 

I am planning on swapping everything later on down the road, after the engine and suspension is done. I was curious what would fit.