OhYeah

i have tune my ECU. In the next day i drive my z normally but at the evening the car start to have annoying sound[like a spark or electricity..i dont know] from under driver seat out side the car. -*- Anybody know what is that sound, where is it come from and can we Fix it?. I'm looking forward to all of your comment. The sound has bothering for the hold day already

Ps. My Z just crashed with one ******* big rock T^T