Real Performance Products???

[Morelli]

I am a recent Porsche convert. I've concentrated on Japanese imports for the most part, building numerous Hondas, and one Lexus SC300. Now that I am driving Porsche, I am trying to familiarize myself with all of the best go-fast parts. As any good performance enthusiast would, I started an off-hours business dealing with import racing, simply so that my friends and myself have access to parts at wholesale. I want to do the same thing with Porsche, but I need some input:

1) Bolt-on performance: Intake, headers, exhaust, injectors, ignition, etc. Who makes the best on the market for our cars?

2) Forced induction: Other than nitrous, do we have any options?

3) Suspension: Probably doesn't need anything, but who makes quality components?

4) Whatever I am forgetting?

I'm basically looking for companies that I can open accounts with. Also, who is the most trusted 996 engine swapper around?

Thanks for the input, I look forward to learning more about the performance aspects of our cars.