Lextek GP1 Stubby Exhaust Silencer (240mm, 51mm). ???? Lextek GP1 Exhaust System Kit – KTM Duke 790 / 890. Lextek Stainless Steel Link Pipe (KTM Duke 790 / 890). Upgrade your bike with thiscomplete Lextek exhaust bundle, designed for improved exhaust flow, enhanced performance, and a deeper, more aggressive sound.
