Exhaust muffler silencer ARROW PRO-RACE NICHROM STEEL racing not homologated for APRILIA TUONO V4 1100 19 -- 20

Pro-Race silencers design comes from the first prototypes made for MotoGP. Pro-Race silencers are built putting together a conical-shaped part (the main body of the silencer) with a cylindrical ending section (ø98mm) and these are available in titanium or nichrom (a stainless steel alloy).  The silencers are secured to the bike by means of mounts welded to the main body, their cone-shaped design provides a reduction of dimensions and weight, but it also reduces the overall volume of the exhaust, thus limitating noise damping capabilities and the application on bigger or demanding engines.  Pro-Race silencers are available both in a street legal and racing version, with removable baffle.
WARNING: Aprilia original exhaust system comes with an exhaust valve. Installing any of the Arrow exhausts it is needed to remove the exhaust valve. Internal diagnostic system (EOBD) will notice the malfunction of the valve system with a warning message on bike display and ECU can enter “recovery” mode. When installing any one of Arrow exhausts for RSV4 1100 Factory it is recommended to install a map / ECU deactivating valve function or, as an alternative, to install an exhaust valve emulator system, available in the market


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