Mass air flow housing 3.50" (90mm) OD x 6.0" (152mm) for Audi, VW, Seat, Skoda, Opel, Vauxhall, Citroen, Nissan, Porsche, Volvo, Fiat, Hyundai, Land Rover, Mercedes-Benz, & BMW *Sensor NOT included. Reuse factory sensor.* --- CNC machined from 6061 billet aluminum --- Flange designed to match the factory shape of the sensor --- Undercut ends for secure clamping --- Precision TIG welds --- Stainless steel hardware --- Hand buffed & hand inspected for consistent quality --- Suitable for powder coating, anodizing or polishing --- Available with/without optional air straightener --- Made in USA --- --- Personalize your build with an MRP component and make your custom project stand out from the crowd. A product of Performance MRP.