Timing Belt or Chain

[Steevo25]

Hi All,

This is my very first post. I have just bought a Boxster 2.7 year 2000. It has a full Porsche history and is immaculate. I am picking it up at the end of next week after it being given a full service and the rear plastic screen replaced (the only fault I could find on the car).

I just wondered, do these engines have a timing belt or a timing chain. If its a belt, what is the replacement interval and is it something you can do yourself (I have always worked on my own cars in the past).

Many thanks in advanced.