Met up with this guy, Alvin. He's really professional in his work and explained to me every single point that he does, even went down to details on the material of his stuff and the physics behind every single action he does. It clearly shows that this dude knows every single action he does and does not smoke me when I have any queries in his stuff.
Take a look at the CAI that he did for my car:

sorry for bad image quality cuz i forgot to bring camera along. Samsung i780 isn't really thhhattt good in photo taking though!
Air intake valve is taken out, and replaced by this high quality pipe that directs to the side, leading towards the bumper (do not have to remove bumper). Theoretically speaking, this system will allow cooler air to go into the combustion chamber. Cooler air = denser air. With higher density of air, combustion becomes easier and more effective. So FC will not really be affected unless we rev the engine.
Another thing I did was the 6 point grounding + voltage stabilizer. I only know how to picture it, but dunno how to explain. But my car pickup now is damn freaking reactive compared to last time. Super shiok. couldn't shoot where he put the grounding cuz its quite dark, all the photos turn out to be smurgy. Budden, all the contact points were done up properly.
Oh yes, sparkbridge. Do change them too.
Any kind soul willing to share on the theory of these 3 things?
1. grounding
2. stabilizer
3. sparkbridge
Total damage: $240
Damage breakdown:
CAI - $80
Grounding - $10 per point, 6 points $60
voltage stabilizer (12points) - $80
Sparkbridge - $20
My sparkbridge setup is those cheap cheap one. Dun expect a lot from this set up because it only increased 2V from it. Whats more, heard that too high a voltage for sparkbridges may cuz the plugs to melt and then servicing will kill your pocket after that.
Alvin: 91462635