interesting read fella's.... I completely agree with you Bryan. Since I autocross a lot, here are my observations....Yes the sound symposer is authentic intake noise. Like a big old four-barrel....not in function but in noise output. No, it does not conflict with or cause drone of exhaust noise. And I have a 2jracing 3" exhaust that's got lots of drone.... Just for shits and grins I took the foam part out and put a rubber stopper in the tubing. All it did was stop that whaaa sound on heavy acceleration. It doesn't make the turbo spool faster. It didn't make me go faster. (I'm kinda laughing about that one). it didn't affect the exhaust noise. And I put it back the way it was. In the midst of an autocross you can't look at the tach so engine noise is important. I doubt my exhaust provides much performance gain either but I do have auditory feedback while running with a big 'ole helmet on. And it's not just redline noise we look for. Since these are low powered cars I want to have all the sensory input I can have going through elements and for me sound is one of them. Intake and exhaust sounds are different. For instance in longer corners/sweepers I can tell if I'm managing engine power with light throttle or backing off, back on, and use the sound to control my driving especially since you can steer these cars with the throttle. And finally I really agree with you that the community (lemmings) you're addressing most likely knows nothing about the sound symposer. Kinda like questions I've seen like "when should I shift?"