Even though only 1,000 units of the all-new BMW M4 CSL are destined for production, Manhart has gotten their hands on one of them, and they have tuned the heck out of it. More power is on the menu, ...
Chances are, if you own something at least mildly sporty, there's at least a few aftermarket options available for you to ...
This video covers the launch of ECU tuning for the BMW G8x M3 and M4, with performance results measured on the dyno and Dragy testing. The tuning increases power and torque while maintaining factory ...
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