I'm not sure what noise a Rallye makes but I've been told my valver is very distintive.
I was behind a Civic a couple of days ago who was dithering around, and when i finally got past i was in first and lightly (5k) hit the throttle. loads of people on the side of the road turned and looked at the valver, so of course being a tart i booted 2nd and really made the car howl.
I then spent 10 minutes when i got home looking for "the noise" that made everyone look at it. My sister did tell me later that its always made that noise and its a nice noise rather than a racket. Who knows.