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Ships within 48 hours · Estimated delivery Aug 18 - Aug 23
We recommend one-step colder spark plugs for better performance
We also recommend changing your spark plugs and Primary O2 sensors every 15k miles
Tuning for specific octane
It will lock the ECU again and you will lose your tune/unlock
we will ship you our DME Tuning Kit
Mercedes C43 2017 femto We recommend one-step colder sparkExpertly calibrated and meticulously refined, DME Tunings ECU software is guaranteed to give you MORE of a good thing. More horsepower, more torque, and a more exhilarating driving experience by delivering usable power through improved throttle response and torque management. With additional ft. lbs. of torque through the mid range, acceleration out of your favorite corner and onto the straight is noticeably quicker throughout the rev range. DME
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