This is the Ducati alternate tail tidy in the Accessories catalogue, which says it fits, the V2 (from 2020MY), V2 Bayliss, V4, V4S, V4R and V4 Corse up to and including 2023MY. The pen in the final picture is to give a bit of scale and show it is significantly shorter than the OE. Fitted to my V4 for 600 miles, 2 tiny marks in the lacquer on the underside of the carbon, which do show in the picture if you zoom in. £225 posted to a UK mainland address. Andy Note : it turns out that this tail tidy does not work with the Spark wheel barrow exhaust.
Updated model applicability, does NOT fit 2024 and 2025 model years nor compatible with the Spark wheel barrow exhaust. Bump. Andy