E43 13-20 Tuning (W213) Regular fit harder edged V12 note with

harder edged V12 note with more volume and clarity

CLA35 (C118) CATBACK EXHAUST

75% Larger Air Filter: Dramatically increases airflow for more power

Discharge occurs in the spark support gap (space between the tip of insulator and the base of the outer electrode) to help prevent carbon buildup

free flowing radiused bend into the manifold plenum

E43 13-20 Tuning (W213) Regular fit harder edged V12 note withOptimum Tuning by ZAC Motorsport Optimum Tuning is ZAC Motorsports in house performance calibration division. Every tune is developed to deliver the perfect balance of power, response, and reliability, customised for your specific vehicle setup. Unlike generic flash files, Optimum calibrations are tailored to your intake, exhaust, altitude, fuel quality, and driving style ensuring the engine operates efficiently in all conditions. The result is