Hey bud,
The first is the equivalent of a warm up valve. Porsche calls it an Aux air valve in some of our cars and a idle stabilizer , or something like that, in others. Basically, it has a bi-metal thermal contact inside that tells the DME, "I'm cold, give me more air and fuel until I warm up."
The second pic is another air valve that opens when you turn on the A/C. That kicks up the idle to help prevent stalling because of the extra load of the A/C compressor. We call it the a/c kicker valve.
In a racing 944, you can delete both of these. It may make your car harder to warm up.