After installing the UNI and riding a bit, I did notice a difference. Maybe a slight power increase and the bike response seemed quicker. I also had to readjust the idle after installing as it was running almost a 100 rpms higher. I guess this is due to the less restricted air flow. I was suprised as I didn't expect to notice much difference. My airbox (other than the UNI) is stock - just drop it in.
