Just got my Chevy605's in and installed them right away. They sound awesome! Deep rumbling without being too loud. In fact, I can't imagine running pipes any louder. They are perfect.
I was planning on recording the sound and posting it online, but the dmahn sound clip is exactly what mine sound like.
http://www.bonnevilleamerica.com/audio_video/dmahn.wavAlso, Chevy605's workmanship is above reproach. The pipes look brand new. Not a scratch on them and they were very well packed.
Looking through from the header end I immediately saw that the catalytic converters had been removed. Some people have said that you can see through them, but that hints at them being straight pipes. Instead, when you first look through them you can see light, but you have to tip them at angles to see through to the other end. They appear to have two offset baffles in them with holes drilled around one of them.
Whatever, they are perfect for me. They satisfy the letter of new Denver ordinace (if not the spirit) as they are factory pipes with the EPA approval stamped into the chrome, but their sound is very good. Gives the bike a whole new attitude.
I met a guy recently who was running sceptre pipes on an '05 speedy and setting the scale of his sceptre pipes at ten in loudness, I'd say these were a six or seven, and the stockers would be at about two. I would imagine that some of the fishtails and straight pipes I have heard would be around fourteen or fifteen.
Chevy605 is running another auction on the "cannon" type pipes, which are the factory BA tapered pipes with about six inches cut off of the end just behind where the taper starts, and the rest of the pipes modified like the ones I just got.
http://cgi.ebay.com/?ViewItem&item=150169209930For the price and workmanship - not to mention the fact that the pipes are "factory" and stamped with the EPA approval - they are the best pipes for the money in my not so humble opinion.
By the way, I applied new sealant to the pipes and made sure the clamps were properly aligned, and I have no popping on deceleration or any other adverse effects. They smoke a bit, but he sent a letter explaining that the smoke is from the machining oil he uses while cutting. it should burn off in no time.