Arrow Part Number - 71837PK Fits: BMW -▪ S 1000 XR for 2015 - UP Note - For correct fitment, this silencer is designed to be connected to the Arrow Racing Collectors Pipe - Part# 82-716-31MIOr alternatively, the O.E. exhaust headers / collector can be retained. The RACE-TECH Silencer has the Diamond Oval profile in Titanium with a natural Ti finish. The silencer is supported using a fixed welded brackect for mounting. The End Cap is created in carbon fibre for a modern stylish finish. This ARROW Homologated silencer complies with ADR 83:00 Noise Standard (legal in all Australian States). Specifications for RACE-TECH Silencer - 71837PK Features Details Silencer material Titanium Rear endcap material Carbon Fibre Silencer inner parts material stainless steel Mid-Pipe material Stainless Steel Silencer mounting Welded fixed mount Silencer body length (mm) 300 Junction (inlet) diameter (mm) xx Junction (outlet) diameter (mm) 50 dB Killer Yes Weight (Kg) 2.90