CNC machined in-house from billet aluminum, these MAF housings are perfect for use in upgraded turbo cars with larger injectors and appropriate software.

Please Note: Optional airbox adapter pieces designed to work with either the factory S4 or RS4 airbox are sold separately.

We also carry an 85mm MAF housing for the later Hitachi MAF element, which is available here: MAF Housing, 2.7T Hitachi, 85mm ID

Does not include MAF Sensor!