I'm looking any microtech tuner in Penang area after 1 year ++ my car under sun / rain / snow .. finally ready to tune and rumble penang road .. ahhaha just kidding ..
I've heard that port bit of outter part to exhaust in the turbine makes air flow smoother.. is it true? but some say
it's quite risky because it might have some chances that the shell of turbine will get cracked.