hi to all i got a slight problem dont know what it is as i am new to skylines i just installed a pod filter in my r33 and when ever i hit boost in normal driving i can hear a beeping noise coming from towards the left hand side of the car i can not figure out if its coming from the engine or somewhere in the car if any one knows the problem please tell me because its really annoying and do not want to damage the car in anyway because of that beeping noise thanks!!!