The next time you design a turbo system, let me know if you find a flow map, or a psi map from the manufacturer.

I can make 300 with a bolt on turbo kit and no other upgrades to the vehicle. If I make the other upgrades you have, I can have over 430 whp. You should research before talking smack.

This is a 3 year old video. If you watch my other videos you will see my gains reflect the typical gains that I mentioned.

Typical gains with low boost is 300 whp on stock fuel pump, injectors, engine. Higher boost with upgraded injectors, pump, and larger turbo will net around 430 whp on the stock engine.

HKS hi power does sound like rice. I couldn't stand it and sold mine within a month of having it. "Best" exhaust is subjective, and even more than that, the exhaust sound changes quite a bit depending on if you are running a cat or running a turbo. For example, borla sounds amazing with the stock cat and no turbo. If you remove the cat, it sounds like ass, then if you add a turbo, it sounds great again.

Cobb AccessPort allows you to program the car's PCM. This includes disabling any CEL you don't want.

stock is rated at 230 hp, on a dyno machine we typically see 180-190 whp. If the car has a chip, intake, exhaust, etc, we might see 200 whp NA. With a turbo, depending on setup and mods, we can get anywhere from 280 to 430 whp range on a stock engine.

It's a 6 speed, actually :)

Does it sound sloppy now? How would you know? You're looking at a 3 year old video.

How about the honking turbo?

What are you talking about? The RX-8 has liquid filled rubber engine mounts.