Arrow 71806PK Race-Tech Titanium Slip-On Muffler w/Carbon End Cap for Ducati Hypermotard/Hyperstrada 821 13-15/Hypermotard 939/Hyperstrada 939 16-18Product Descriptions Arrow's 71806PK Race Tech Exhaust, Titanium with Carbon End Cap is made specifically for Ducati Hypermotard Hyperstrada 939 (2016 current) Homologated Titanium Race tech Silencer With Carbon End Cap For Arrow Link Pipe Race Tech exhaust range was the first series of silencers designed with the new diamond shaped section. This design replaced (quite completely, but not at all) in the past years the older silencers sections, oval