MAF Housing, B5 Audi S4/RS4 2.7T for Bosch Sensor, 85mm ID
These 85mm Inside Diameter Bosch MAF Housings are designed for use in modified B5 Audi S4/RS4 & C5 Audi A6/Allroad 2.7T cars running upgraded RS4 K04 or larger turbos with appropriate software and matching fuel injectors.Precision CNC machined in-house from billet aluminum, these housings maintain a constant 85mm inside diameter, and can be used with our stock airbox adapters, or 3.5" silicone couplers.
