-10% New Silencers Pair Akrapovic Slip On Titanium silencers Ducati Monster 937 2021-2023 Euro 5 Akrapovic S-D9SO17-HCQT €1,295.10 €1,439.00 The Akrapovic silencers S-D9SO17-HCQT is a slip-on system made in titanium for Ducati Monster 937 (2021-2022). It is EOE EC EPA approved and therefore street legal in most countries. 5 eurosAkrapovic: the sound of the performance. Discover our range of Akrapovic exhaust systems, designed to improve the performance and sound of your motorcycle. Add to basket