Thanks. Its realy great and powerfull sound. MASS is from Italy. It was instaled in Slovenia. Catalysator must go off. I spend 440€. Titanium tromboncino corto with carbon top. + 120 for installation.
Yes, video is filmed without DB killer, but i ride with it, because with or withouth is no big diference. And with db killer is still great sound and powerfull.
Silencer belly-catalyst must go off, because we use original pipe. But the seller gave me all documents to make homologation.
Sorry for my bad english.