Arrow Indy-Race Evo exhaust muffler for motorcycle Benelli TRK 702 - TRK 702 X. Indy-Race Arrow silencers has been inspired by the shape of certain US racetracks (this is the reason for the name of the range) and the section makes it possible to reduce dimensions whilst keeping a good internal volume to damp the noise with a very good power output. Internal parts are in stainless steel, TIG/MIG welded, the silencer body is available in titanium or aluminum and a carbon endcap or tubolar is also available. All EU approved Arrow silencers have a removable rear endcap (db-killer) and a certificate of approval is issued to be attached to the vehicle registration document. Assembly does not require changes to the carburetion, mapping or the use of additional control units.