... cooled cylinder heads----CIC System----Vibration dampersStandardStandardSound power level (+5°C / 50°C)71,0 dB(A) @ 50Hz73,5 dB(A) ... @ 60HzSound power level (-10°C / 45°C)72,0 dB(A) @ 50Hz74,5 dB(A) @ ... 5) dB(A) @ 60HzSound pressure level @ 1m (+5°C / 50°C)63,0 dB(A) @ 50Hz65,5 dB(A) @ ... 50Hz66,5 dB(A) @ 60HzSound pressure level @ 1m (-35°C / 40°C)(66,0) dB(A) @ 50Hz(68,5) dB(A) @ 60Hz ...