Romeo Ferraris has a full suite of updates for the entire range of Stelvio models.

After a few months in your garage, the Alfa Romeo Stelvio Quadrifoglio's 503-bhp twin-turbo V6 might start to feel little less invigorating as the ample power becomes your new normal. The folks at tuner Romeo Ferraris are ready to solve this problem by offering a tuning kit for the Stelvio that bumps the output to 548 bhp and 487 pound-feet, instead of 443 lb-ft in stock trim. The company claims that the mods take the SUV's top speed to 180 miles per hour, versus the standard 176 mph.

To really advertise the extra output, Romeo Ferraris built an eye-catching Stelvio. The exterior wrap has a colour-shifting effect that is mostly dark green but can show bronze and purple hues, depending on how light hits the body. The firm also adds white-tinted carbon fibre for trim on the grille surround, mirror caps, and door handles. The SUV rides on a set of 20-inch OZ wheels with a 10-spoke design.

Alfa Romeo Stelvio di Romeo Ferraris
Alfa Romeo Stelvio di Romeo Ferraris

The sporty appearance also gets some help from the tuner's wheel spacers. They broaden the front track by 20 millimetres and the rear by 25 mm. A new set of springs lowers the ride height, too. A Ragazzon dual exhaust has electronically adjustable valves to tweak the sound from the pipes.

Alfa Romeo Stelvio di Romeo Ferraris

If an owner has a lesser trim of the Stelvio, the Romeo Ferraris can still help them out. The firm's upgrade kit for the petrol-fuelled 2.0-litre turbo available in Europe pushes the output to 243 bhp, instead of 197 bhp. The more powerful 2.0-litre has 309 bhp rather than 276 bhp. For the diesel options, the tuned 2.0-litre makes 225 bhp in comparison to the stock 207 bhp, and the 2.2-litre has 208 bhp, rather than 176 bhp.

Gallery: Alfa Romeo Stelvio by Romeo Ferraris