G-Power rolls out 3 tuning options for the BMW M4 CSL

There is little arguing against the new BMW M4 CSL being entirely adequate straight from the factory, what with its 550 PS (542 hp / 405 kW) of output and 100 kg (220 lbs) of weight savings over the standard M4. Still, G-Power felt like it needed a little bit extra.

The German tuner is offering three boost options for the sporty coupe. Stage I raises the output to 620 PS (612 hp / 456 kW) and 750 Nm (553 lb-ft) of torque thanks to a new muffler and an ECU update.

Stage II takes things further with the exhaust system in the middle also getting replaced and the ECU tweaked further. The result is 670 PS (661 hp / 493 kW) and 800 Nm (590 lb-ft) heading for the wheels.

Last but not least, Stage III yields a cool 720 PS (710 hp / 530 kW) alongside 850 Nm (627 lb-ft) of torque. It utilizes a new exhaust manifold with sporty catalysts, a carbon-fiber hood with vents, and an active cooling setup for the engine bay.

Paying a premium gets you bespoke wheels from the tuner’s Hurricane RR or Hurricane RS series. The standard sizes are 20x9 inches at the front and 21x10.5 inches at the rear. The body kit stays mostly intact, with G-Power only suggesting you install its carbon-fiber front splitter rounders for even less drag.