For a correct use of product in order to obtain a powertest similar to our dynochart it is necessary remap the engine in racing configuration (Ktm map) Without configuration motorbike will keep a good increase at low RPM losing at high. Homologated DUAL CARBON Slip-on kit with removable db killer (baffle) for racing use,it include specific link pipe, brackets, holder and fasteners, link pipe stainless steel made (Aisi 304) and caps ERGAL made by CNC machineries while silencer body is made by CARBON 100% . Developed from GPR thanks to Moto GP and SBK races experiences, the system has a oval shape, Diam. 90x120mm, medium weight about 1,75 kg depending from motorbike of destination. GPR provide original homologation documents and instructions available as drawings or video or pictures books. For a correct use of product in order to obtain a powertest similar to our dynochart it is necessary remap the engine in racing configuration (Ktm map) Without configuration motorbike will keep a good increase at low RPM losing at high., it is possible use panniers and central stand and sonda lambda boss is included when necessary. Available many sound file and pictures gallery,product is hand made in Italy, produced under European directives,it is street legal and it has 2 years of international warranty