Shes winter here boys/girls. No seat or no battery. It does sound way better. I will get a re-tune in the spring with a BMC filter. I got these frame sliders because I didnt like failed stories of the other products out there.
This is not a full system. I was told that the headers on these bikes are pretty much optimized so there wasnt much point in going the distance and spending twice as much since this will never be race bike.