I am in the process of replacing my D16Y7 with another i got from a salvage yard. I am using the motor, tranny and clutch from the salvage vehicle. They have 121,000 miles and I got the whole setup for $850. What should I replace or add before I place the new (used) setup in my car? I am going to replace the spark plugs, wires, timing belt, tranny seals and i was told to replace the main seal which I will figure out when I get into the project. What upgrades could I add while I have the setup out of the car? What upgrades are available for the D16Y7? A lot of questions, I know, but whatever input you may have on this would help.