Yes, I have the system on my car, and I really love it. I should have put it on sooner. Mine came from Mid-America, but from what I understand the systems are produced by a company called Sweet Thunder.
Mine has been on the car since this past January. I had been displeased with the sound (or lack there of) of the stock system, and was looking for something with more "bite" to it. I wanted a system that made the car sound aggressive, but toned....and this system provides that.
The chambered system has quite a bit of bass to it, more so than any Corsa system that I have heard. The chambered system is deeper in tone. The advertisements state that they are trying to duplicate the sound of a mid-year with sidepipes, and I will say that they have come very close.
The car has a nice deep rumble to it at idle, is aggressive under throttle, and mellows at cruise. Do not buy this system and expect to have absolutely no increase in interior resonance, however, the increase in my opinion is minimal.
I have no problems listening to the radio, and do not have to yell to talk to a passenger. No headaches, either. If you are looking for a deep, throaty sounding system with a good deal of bass, then seriosly consider a chambered system. I doubt you'll be disappointed, I love mine. :love
