I am bumping this thread because I am buying some new OEM parts, and have seen some differences.

I have all the obvious stuff: Evo 9 head, Evo 9 ECU and Evo 9 wiring harness and tapped the block for the MIVEC oil feed line.

However, it looks like the themo housing is a different part number, as is the coolant pipe off the back of the block as are a few other things (like the front lower coolant hose going to the radiator).

Question is, do I need these different Evo 9 parts, or will the parts from my Evo 8 work?

THanks.

-Erik

 

Hi, on mine, the rad hoses were the same. I also used the original thermo housing, but from memory, one of the coolant hoses from it becomes redundant, and, on mine, is simply blocked off. It's possible I may have remembered this wrongly, and the hose that's blocked of comes out of the back of the block, but the thermo housing is definitely the original.The car was modified 4 years ago, is used hard, and has remained very reliable.