hi, i already received the VS and GC on last friday. I have just installed the VS on saturday and what i can feel after installed the VS is

1) Aircond feel much cooler and the light when not dimmed when the air cond kick in.
2) Car audio become clearer and louder.
3) little improvement on the gear shift, smoother than before.
4) light brighter ..
5) increase pickup a little..

i not yet installed the GC, maybe later if have time...

anyway thanks to noobdao for the good product..

later i post the pic, now still learning how to ...