German tuner GP infinitas has released an upgrade for the BMW M2 Competition that pushes its peak power to a tyre-shredding 515 kW.

Using BMW's S55 twin-turbo 3,0-litre straight-six engine, the tuning firm has installed a stage-three performance upgrade, which includes a turbocharger upgrade, software changes, a revised central screw lock for the crankshaft and a sports filter. The M-DCT gearbox, meanwhile, has also been tweaked for more precise gear shifting.

Thanks to these modifications, the Gachenbach-based firm says the M2 Competition’s standard outputs of 302 kW and 550 N.m of torque have been increased to a whopping 515 kW and 850 N.m. These changes result in a claimed 0-100 km/h time of 3,2 seconds (provided you can get the rear wheels to bite, we suspect) and a top speed of just under 330 km/h.

GP infinitas has also fitted a body kit and rear wing to the M2 Competition, along with a set of in-house-designed forged alloy wheels.