There are literally a thousand aftermarket treatments out there for the BMW M3/M4, but only a handful have the prestige and the quality you get from a G-Power BMW M4. Their latest kit for this car is built for the cars with Competition Package and it comes in three stages of power.
Let’s start with the most powerful G-Power BMW M4 Competition which packs a sweet 600 PS and 740 Nm of torque. That healthy upgrade over the standard figures (450 hp and 550Nm) is the result of employing a bespoke titanium exhaust system featuring new downpipes without catalytic convertors, a rear silencer box culminating in four 90 mm carbon tailpipes, and engine mapping that alters fuel, spark and boost parameters.
Should you find the full-fat G-Power BMW M4 Competition a bit much, the tuner also offers ‘Lite’ packages with 520 PS and 700 Nm from a choice of the Bi-Tronik 2 V1 ECU bespoke remap, or the Bi-Tronik 5 V1 external power module, or 560 PS and 720 Nm via either the Bi-Tronik 2 V2 remap or the Bi-Tronik 5 V2 module, plus the exhaust downpipes without catalytic convertors. As always, you also get a set of HURRICANE RR forged double spoke design wheels.