I think there were 3 Boss Shinoda's made in 1994 with somewhere around 900HP. I forgot what engine they had but Motor Trend or some magazine once had an article about it. The tires would actually melt and the rubber tracks it left would flame because of the massive amount of power. They said there were major reliability issue though. Anyway, if it was a real Boss then you'd probably hear it. I can't imagine how loud 900hp american muscle power must be.