I have a 08 SG. I liked the looks of the 2010 SG with the 2-1 exhaust, so I acquired a 09 head pipe, blocked of the cross over and installed a single SE muffler. Sounds good, but have been looking for a muffler designed for the 2-1 system (hens teeth). The MOCO advertises the new 2-1 muffler in the new SE catalog, but it is now back orderd until 28 Sept, subject to change without notice. Sounds like 9-1-09 I will be looking at Fuel Moto.