First problem:

When I make a left turn, for example getting from one streeet onto another, i get a very weird "repeating" sound coming from the front left side of the car. The sound is kind of like baboon but little higher pitch and it goes like "hoo hoo hoo hoo" The hoo's are louder and faster at greater speeds, the slower i turn, the less hoo's i hear. I'm sorry for such bad comparison but i didnt know what else to compare it to. Is there something i should look at right away?

Second Problem:

I know i've posted this before, and i've got answer to it, however it didn't help. I upgraded my front brakes and bought Brembo Slotted rotors, and AXXIS ceramic pads. For the first day, it was great. It still is, however from 2nd day on, they have been making high pitch squeal. This is the third product i used for anti-squeeling and it doesnt help. Seems like, when i take the wheels off, and i put the grease on pads and on caliper touching parts, it's fine for couple minutes, and the noise comes back. It really is driving me crazy, even though brakes are doing good job. People freak out when i stop by them due to the noise this makes. If someone has any other solutions i would be very greatfull.

PS

My dad mentioned it could be due to my pads being ceramic and that they need more time to get "flat" with the disc. I kind of know what he's talking about, but im not sure if its true, or is there something else i should do.

Thanks in Advance.

First problem, probably bad CV joint
Could be wheel bearing

Second problem.
Probably just because they are ceramic pads..
try some OEM pads and see if it stops.

So i kind of wasted money on ceramic pads. I thought that slotted + ceramic combo was going to be great :-\

They are a great combo. They stop great. But they are noisy. You can't have it both ways ... well you could but those are some damn expensive pads.

Yes the stopping distance is great, thats why i was trying everything to get the noise to stop. The noise only appears about 1'' when i press the pedal, up to 1'' away from the furthest point. IF i slam the brakes all the way, noise doesnt come up, however if i try to brake slowly, it starts to squeel. Well, i guesss i will be buying the regular ones.