It’s quite crazy the amount of power some tuners claim they can get out of BMW’s new S55 twin-turbo engines. Earlier this week, we were rather reluctant to believe the guys from GSR Autosport when ...
When BMW introduced the new M5, letting the world know that the vehicle has adopted forced induction, the happiest people in the world to find this out were tuners, who knew that the twin-turbo setup ...
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