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034Motorsport MAF Housing, B5 Audi S4/RS4 2.7T For Bosch Sensor, 85mm ID

Regular price $110.00 USD
Regular price Sale price $110.00 USD
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CNC machined in-house from billet aluminum, these MAF housings are perfect for use in upgraded turbo cars with larger injectors and appropriate software.



  • Precision CNC machined to the tightest tolerances.
  • Constant 85mm inside diameter for use with most K04/BT software.
  • 3.5" or 89mm OD hose connections.
  • Precisely machined flange for Bosch MAF element.
  • Engraved "034Motorsport" logo.



  • 2000 - 2000.5 Audi S4/RS4 (B5)
    • 2.7T
  • 1998 - 2000.5 Audi A6 (C5)
    • 2.7T


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!


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