im lookin at buying a 2004 focus with 108k miles great shape besides the tune up and oil change what other parts should i get and what should have been done to the car at 100k does it need a timing belt and water pump?

what other parts should i get and what should have been done to the car?

There's a lot of posts about first upgrades, use the search bar on the main page, it'll be your best friend.

What are the specs on the car? (Engine, body style, etc.)

Personally I recommend for starters:

A CAI or SRI, depending on your preference.
SVT Headers and/or aftermarket exhaust system.

Those are the very basic bolt-on upgrades, but do make a difference in performance. That should get you started.

i didnt mean upgrade the car i meant to do maintenance since i had just bought the car what all needs to be done to a focus at 100k and when are the timing belt intervals and its a 2004 zx3 how often should the water pump and oil pump be done?

Oil pumps usually don't go out on a regular basis. They aren't typically considered 'maintainence'. Same with a water pump. My Focus has 155k and I've never had to replace either one. Just keep clean oil and coolant in the system.

Typically you'd change a timing belt only if it broke or jumped timing. Although timing belts are critical, I'd imagine you'd go through a serpentine belt before a timing.

Well I'm pretty sure the timing belt is supposed to be done at around 100k miles. I've been looking at zx3's myself and the engine/timing belt is non-interference meaning it won't smurf your engine if it lets go. As far as water pumps go, I've only really dealt with them when I noticed leaking from the weep hole. Honestly if the car doesn't have any records of service, I would start with the usual-plugs,wires,motor and tranny fluid,flush the radiator amd go over the whole engine bay lookling for leaks of any kind.

now my other question is my friend isnt very car savvy and im buying the car from him he thinks its the 2.3l not the 2.0 what are my chances i havent been able to get over to the car to check for myself yet and also the 2.3l on autozone parts shows a timing chain is that true is it a timing chain instead of belt? and autozone actually doesnt even list an oil pump for the 2.3 whats up with that?