The GPR exhaust silencers K.163 are produced in the various material: Aluminum, Stainless Steel, Carbon, Titanium and Poppy with round or oval and in various special versions (selectable in the options). The exhaust systems GPR ensure an increase in power and a strong decrease of the weight while maintaining in most cases the carburation original unaltered. All discharges are supplied with everything needed for installation (link Pipes, clamps, screws, brackets, etc ...).
GPR EU approved exhausts have rear cap removable (Db-killer) and are supplied with certificate of approval to be attached to the vehicle registration certificate. Official warranty 24 months.
The production GPR for road bikes 4 stroke provides homologated exhaust systems and racing made by artisans in developing and industrial equipment assembly but with regard to the production capacity. For more information and technical details visit the manufacturer's website (click on the logo at the top to the right).