My point was that having an old car that made some noise wouldn't really throw away the "sleeper" image because everyone expects everything with a V8 to have flowmasters on it. NOT that you should run flowmasters. At this point, there are almost none of these cars left "in the wild". The only reason you'd ever see one on the road is because someone did the work to put it there. Anyone who would race is a car guy, and would know that.
Well..I think there was some misinterpretation here. I meant that certain just know that Flowmaster sound. If they hear it, they probably know that something is going on with it.
Which is to say....not at all.