85mm MAF Housing

The 034 Motorsport MAF Housing is a precision-engineered component designed for performance upgrades on specific Audi models. Crafted from billet aluminum and CNC machined in-house to tight tolerances, this housing maintains a constant 85mm inside diameter, making it ideal for vehicles equipped with upgraded RS4 K04 or larger turbochargers. It is designed to work with the Bosch MAF sensor and features 3.5" or 89mm OD hose connections, allowing for integration with silicone couplers or optional airbox adapters. This MAF housing is intended for modified B5 Audi S4/RS4 and C5 Audi A6/Allroad 2.7T vehicles. Proper installation requires corresponding software upgrades and matching fuel injectors to complement the increased airflow. Note that the MAF sensor itself is not included with this housing. Installation may require specific airbox adapter pieces, which are sold separately and designed to mate with either the factory S4 or RS4 airbox. This product is sold for racing and off-highway use only and is not legal for installation on emissions-controlled highway or street vehicles. The product page includes a mandatory disclaimer that must be agreed to before purchase, acknowledging its non-highway use status.