BMW’s hard-core, track-focused M4 GTS makes almost 500 horsepower in part because it features water-injection technology co-developed with Bosch. And compared to the 425 horsepower you get in*the regular M4, that’s a pretty big increase. Now, according to Autocar, Bosch is offering that same technology to other automakers. Water injection works by spritzing the intake […]
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