Novitec Rosso claims to add an additional 39 hp (28.7 kW) of power from the 4.5-litre V8 engine. A new carbon-fiber airbox with modified air routing is installed on the intake side. The new exhaust system, says Novitec Rosso, was developed to improve exhaust-gas flow. The exhaust system consists of two manifolds, sport catalysts and a rear muffler with a control flap, while the sound can be adjusted by the Manettino button on the steering wheel. The exhaust system features three tailpipes with a diameter of 90 millimetres and optimises power yield while producing a more sporty exhaust note. It is manufactured from Inconel, the same material used on Formula 1 cars, making the exhaust especially heat resistant, and more importantly, extremely light: Compared to the production exhaust it represents a weight saving of 21 kilograms.

The engine conversion also includes reprogrammed engine electronics with recalibrated mapping for the ignition and injection. After the conversion the engine of the 458 Italia produces a claimed 609 hp (448 kW) at 9,100 rpm. Simultaneously peak torque grows from 540 Nm to 569 Nm at 5,400 rpm. The engine also responds even faster to throttle commands and the slightly higher redline speed results in even better continuity during upshifts.

Powered by this engine the two-seater after the tuning programme reaches a top speed in excess of 330 km/h. At these speeds favorable aerodynamic properties are also essential and Novitec Rosso says the new body kit parts were fine-tuned in the the University of Stuttgart's wind tunnel. The components are made from especially light, high-strength carbon fibre and give the car a more 'racing' look while reducing its weight. The new front lip spoiler is attached to the production bumper and hopes to lend the car slightly a more striking face. In combination with the curved flap section to the right and left of the central air inlet its shape seeks to minimise lift on the front axle, which benefits directional stability at high speeds. The wing air vents are now remade from carbon fibre and aim to add further sporty emphasis to the front end zone of the car. Carbon-fibre door mirror housings are another touch.

Meanwhile new side skirts, which the tuner says have been designed to optimise airflow between the front and rear wheels, feature down the flanks. To reduce lift on the rear axle Novitec Rosso upgrades the 458 Italia with a new rear spoiler and a carbon-fibre diffuser. The racing look is rounded out with additional carbon-fibre applications such as air vents and the fog lamp surrounds. The roof section of the car and the engine hood are also made from carbon fibre.

Custom-tailored versions of Novitec Rosso's three-piece NF3 wheels were developed to make full use of the available space in the wheel wells. Choosing a staggered combination of size 9Jx21 wheels in front and size 12Jx22 on the rear axle further emphasises the wedge shape of the two-seater car. Technology partner Pirelli supplies PZero high-performance tyres custom-tailored for the revised sports car. On the front axle the tyres are mounted in size 255/30 ZR 21 while at the rear the tyres are in size 335/25 ZR 22.