BradB... why, yes I have tried to detail a Boxster engine. You may notice that I know longer have a Boxster. Believe it or not, that was one of my MAJOR complaints with the Boxster.
Gimp... I'm very careful with the stickers. If you show the car, it's one of the details the judges pay close attention to. If they are paper stickers, I mask them off and spray them with a very light coat of satin clear (not gloss) to seal them. The metal stickers I keep waxed and use a detailing brush to remove excess wax and dirt from around the edges.
Cybercowboy... I started playing with the massflow, hot wire system years ago with my first Porsche, a 944 Turbo. With a small increase in boost and replacement of the barn-door style air meter, I went from 220HP to nearly 310HP. With a change in the exhaust, a larger tubine, and ceramic coated exhaust sleeves, she went to 345HP. That was about as far as I could go on the stock 2.5 liter engine without having O-rings slots cut in the head to prevent blowing head gastgets. For the time, early 1990's, the car was viciously fast.