reminds me of the squeal jakes car had. but his would happen evry time you got on the as period.if i remember his cat was clogged all to piss and his egr was acting like an outlet for built up pressure. making an insanly loud whistle at any speed. scott helped him fix it, and he would know more about it.
MR. freaking negative
i'm not an enthusiast...... the internets told me.