1. If the redline is @ 8K, you have a GSR. Also, the valve cover (look under your hood says VTEC)

2. No idea

3. No idea

4. Do a search

5. Get a new one

6. It should take off about 1 mpg

7. *see 4.

8. You need to buy a cap (capacitor). These come in different sizes. You will need a 1.0 farad size. They all pretty much do the same thing, so get what looks best to you. LED caps look pretty cool.

9. I don't know, but I'm guessing really quickly, that's ALOT of power being sucked out.

BTW, what kind of subs/HU do you have? I am selling mine, 2 12" Cerwin Vega DVC's brand new $240 shipped, and a used Kenwood KDC-9017 HU for $175 shipped (works like new, it's only 6 months old!). Let me know.