It's pretty easy and a great DIY project since the engine really needs to be cool before it's done. If you take it to a dealer or a mechanic, make sure that the car sits for about 3 or 4 hours before they work on it. The most important tool is the Helm Shop Manual. Past that you'll need a feeler gauge, 10 & 12 mm wrenches and sockets, a spark plug socket, a 19mm socket for the crank bolt, and a straight slot screwdriver. First time out it'll probably take you a couple of hours, and the next time maybe half that. One tip... the specs call for .003-.005" on the intakes and .006-.008" on the exhaust valves. Since they tend to tighten not loosen over time, I'd suggest leaning toward the high side of those gaps.