Tuning: Keith’s Mercedes-Benz C300 (W204) gaining +42hp!
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Keith’s Mercedes-Benz C300 is very clean!
Base line power number’s show the vehicle’s power output at 207.1hp in stock form. Our engineer’s proceeded and began programming the vehicle’s ECU with our AMR Performance C300 ECU Software Upgrade (tune) which net us a gain of +42hp and +30tq over stock while firming transmission shift patterns and enhancing throttle response.
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