So I received the Two Bros titanium exhausts with the DB killers two weeks ago from the group buy we did. I installed them this week and they look great but they are a little louder then I expected. Unfortunately I use my bike for daily commuting and I ride in town a lot and they a just a little to loud. They are practically new with only 60 km. The bummer is that I waited nearly 3 months for them. If anyone is interested PM me. Keep in mind that I am in Greece....