Ferrari 458 Speciale - Valved ExhaustThis kit is proven that it adds up 40 Hp and up to 65 Ft Lbs of torque as a complete system so we recommend purchasing the Manifolds along with the Catalytic Converters and the Exhaust system to get the most out of your Ferarri 458 The iconic CAPRISTO Valved Exhaust System offers the best of both worlds through its capability to produce an aggressive exhaust note under acceleration, and a more subdued sound for city driving. At lower engine speeds and