Performance Air Intake for Mercedes Benz C Class / E ClassOptimizing Airflow Dynamics: The High Flow BMC Filter for the Mercedes M274 Engine Who Its For: Engineered for Mercedes Benz W205 C Class and W213 E Class owners running the M274 turbocharged inline four powerplant who want to eliminate the bottleneck in their factory induction system. The Symptom: The factory air filtration system on the M274 is built around a dense, disposable paper element. While effective at basic filtration, these paper fibers