4EE1 question.
 

I have an Isuzu 4EE1 1.7L TD in my car, and I realized I have no air filter, so the turbo just sucks in whatever it finds. I bought a pod filter, and I know it's a bit big. I think it's 2" wide. What size reducer would I need to get to fit it with the turbo? Is the turbo 1.5" wide at the turbine?