same problem here... went to mechanic....was told could be dirty at the power steering reservoir.... mine had to clean a few times. but still the sound is still there... albeit less
no worry guy... it like tats, because it not taken care and moreover the steering fluids in locally made it worst... but trust me its OKIE... It happen to all JAPANESE car...
i've heard alot of good n bad things regarding superchargers from installers and the general modding public. i'm interested to hear the opinions of those that have already installed bolt-on superchargers...