Porsche Box
sters have boxer engines. But, neither the car nor the engine is spelled b-o-x-t-e-r. Sorry to belabor this with a second post, but it rang my bell too.
Now to answer your question...
A set of Torx screwdrivers is very helpful. You'll use them all over your car.
A metric socket set would also be very handy. I use mine all the time.