The fuel filter is mounted on the firewall. It looks like a round canister with fuel lines running to it. About the size of an oil filter.

 

You're thinking of a DSM - there's no such animal on the Evo 8 or 9.

By the way, I was hesitant about replacing the fuel filter on my DSM. There were too many stories about twisted off fuel lines. So I let it go until 120K. When I did replace it, it was a piece of cake. Since the old filter was in service for so long I cut it open to see how badly it was plugged. Nothing! I could have left it on there forever. Well, it appears Mitsubishi figured out the same thing.

 

My mistake. Thought it was the same as a DSM. Good info, one less piece of maintenance to hassle with. The DSM filter was a pain to replace.

 

The fuel filter on a Evo is a non serviceable part. You have to purchase a new fuel pump assembly to replace the filter. There is also the sock on the bottom of the fuel pump which can be replaced.