As per Ducati's own "procedure for power measurement on dynamometer" the Panigale V4 and Streetfighter V4 models will need to use the inductive clamp to get an accurate RPM reading on dyno's such as Dynojet.

The inductive clamp must attach to the circuit of the primary coil to measure the engine speed (RPM) during the dyno procedure.

On Ducati's Panigale V4 and Streetfighter V4 models, the circuit of the primary coil is located under the fuel tank and is not accessible without removing the fuel tank, which makes it not possible to run the motorcycle since the fuel tank has to be removed.

This harness allows you to extend the circuit of the primary coil to the right of the bike so that the inductive clamp can attach to the motorcycle while having the fuel tank in place.