The BMW M4 GTS comes with 19-inch wheels at the front and 20-inch ones at the rear as standard, but this combo is not available as a factory upgrade to owners of the regular M3 and M4.

However, G-Power saw an opportunity here and grabbed it, by making a set of 20-/21-inch rims, from 6061 grade aluminum, a material mostly used in the aerospace industry for its combination of low weight and high strength, and made it fit the aforementioned models. In turn, when equipped with their new aftermarket rims, the cars’ straight-line performance is said to be enhanced, with less rotating mass to accelerate and brake.

Named the G-Power Hurricane RR Forged, these wheels are the lightest and strongest in the tuner’s history, and tip the scales at 11.4kg (25lbs) each.

While the tuner isn’t offering a new power upgrade in combination with these rims, customers can still choose from the already available output enhancements, boosting total power to 680PS (670hp).

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