500 V8 BiTurbo (M278)
The M278 V8 4.7 liter bi-turbo engine is an evolution of the normally aspirated M273 V8. Numerous technological advances are utilized in the M278 V8 including turbocharging, direct injection, variable valve timing and stop/start to name but a few. Output is 429 hp and 700 Nm (516 lb-ft) of torque for CL, S, SL, and GL models. CLS, E, and ML models are rated at 402 hp and 600 Nm (443 lb-ft) of torque. Kleemann engineers have developed software modifications that greatly increase power output, and sharpen throttle response while keeping drivability as smooth as a standard vehicle.
500-K1 (CLS/E/ML): ECU tuning. Up to 508 HP and 780 Nm (578 lb-ft) of torque.
500-K1 (CL/S/SL/GL): ECU tuning. Up to 535 HP and 880 Nm (652 lb-ft) of torque.
Please call for additional information about the use of AMG parts on non-AMG models.
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