Just when it seemed like the aftermarket rush for all things BMW M4 was dying down, we’re once again reminded exactly how popular the performance coupe is in the eyes of the tuning world. Yes, there’s a new tuning program available for the M4 and, in case you’re wondering about its capabilities, the German tuner is promising loads of extra juice and power to the tune of 670 horses and 560 pound-feet of torque, more than what G-Power had at its disposal with its previous kit for the same model.

This is what you get when you let a tuner like G-Power stay in the shed longer than it probably had any business of being in. It’s not just about the extra power either, although to be clear, those numbers do scream top-shelf tuning quality. It’s also about rounding out the M4’s aesthetic and handling qualities, two things we also know G-Power is adept at if you give it space and freedom to work its magic on a program.
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