Bosch is an original equipment global leader in mass air flow technology. Bosch Mass Air Flow (MAF) sensors ensure low levels of harmful emissions with greater fuel efficiency and improved engine performance. Bosch units come packaged as a complete unit. The sensing elements are paired and calibrated with the housings on the production line to ensure precise operation. Some competitors offer a simple sensing unit replacement as opposed to a complete unit. In such cases if the failure is not in the sensing unit itself, the repair may not be corrected the first time. This can cost the consumer or technician valuable time and money. Product Features:OE Technology provides the correct function and calibration to ensure trouble-free operation and emission compliance100% new productNot re-manufactured or rebuiltSensor and housing are calibrated and sold together ensuring precise sensor reading and optimal engine performanceGuaranteed to match vehicle requirements for performance, drivability, fuel economy and emissionsCan provide up to 20 percent better fuel consumption