Ferrari 355 Dyno Capristo Dynapack at Competizione (Video) 2 discussions Ferrari 355 Fiorano dyno run with Capristo, high-flow bypass pipe and GruppeM intake. Before and after GruppeM= 11 HP increase at the wheels. www.Competizionecars.com Tags: GruppeM Ferrari dyno F355 Capristo 355 Competizione Dynapack dynamometer auto Ferrari355 competizione dynapack