I received my AERO 2525XL muffler today and I was shocked at how small it was. I was expecting this big honkin' tube but it's actually quite small. I really really hope this thing isn't too loud. It looks like it will be. I was actually riding around today thinking just how quiet the VX really is with the stock muffler/airbox. I did manage to get bi-xenon HID's installed last night although I haven't had a chance to actually use them at night.