I need to change the brakes on my 2000 Carrera. I have changed break pads on many cars before just never a Porsche. I'm comfortable with a wrench, and like getting dirty. I just have a couple of questions to you guys that have already done this in the past.

How do you push the pistons in to fit the new much thicker break pad? On regular cars there is a special tool that you can rent from any auto parts store, you install it on the caliper and presses the piston back in side. This little tool will save you the headache of installing the break pads. Is there something like that for Porsche?
Do I have to use any type of glue or substance to prevent the squeaking?
Are there some type of special tool that I need to purchase?
Do I need to replace the sensor every time I replace pads?

Second and the most important part. Break pads. I do not drive it on the track but I do drive it in the hills a lot and I drive it pretty hard. So I do want great stopping power. My rotters are stock, will ceramic pads work on this system? What do you guys use? All ceramics rotters and pads, a mixture of composites and organic?

 

I use an old metal wood working G clamp with a thin piece of wood to push the pistons back. They should go back in pretty easy, if not then you may need to look at checking the seals.
I put a little copper grease on the pad backing, which helps.
Yes, the sensors should be replaced with the pad change.
No, do not use ceramic pads with steal discs. There are numerous after market pad options from companies like EBC, but no one pad does everything. Some are better from cold but squeal at slow speeds, others don't really come on until they get pretty hot.
It really is a matter of trial and error and what works best for you.
Good luck