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CTS Turbo B5 S4 MAF Housing 85mm
CTS Turbo B5 S4 MAF Housing 85mm
CTS Turbo B5 S4 MAF Housing 85mm
CTS Turbo B5 S4 MAF Housing 85mm
CTS Turbo B5 S4 MAF Housing 85mm
CTS Turbo B5 S4 MAF Housing 85mm
CTS Turbo B5 S4 MAF Housing 85mm
CTS Turbo B5 S4 MAF Housing 85mm

CTS Turbo B5 S4 MAF Housing 85mm

CTS TURBO
Disponibilidad:
5+ en stock, listo para ser enviado

Ships in 3–5 business days

SKU CTS-HW-040
$129.99 - $129.99
$129.99
$129.99 - $129.99
$129.99
CALIFORNIA WARNING

Handling passenger or off-highway motor vehicle parts can expose you to chemicals such as phthalates and lead, which can cause cancer and reproductive harm. To minimize exposure, service the vehicle in a well-ventilated area, wear gloves, and wash your hands. For more information see www.P65Warnings.ca.gov/motor-vehicle-parts.

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The CTS Turbo B5 S4 85mm (Inside Diameter) MAF Housing is designed for use with modified B5 Audi S4, RS4 & C5 Audi A6/Allroad 2.7T.  These MAF housings are designed for car running RS4 or larger turbochargers with upgraded software, and upgraded fuel injectors.  Each CTS Turbo B5 S4 85mm MAF Housing is machined in house on our HAAS ST-20 CNC Lathe and can be paired with our optional stock airbox adapter (CTS-HW-164).
  • Comes in raw aluminum finish
  • Includes mounting bolts
  • Use this MAF housing on B5 S4 with Stage 3 upgrade (confirm housing size with software tuner before ordering)
  • For Hitachi MAF only

This part also goes by the following cross reference.

Cross Reference Part Number:

Fits These Vehicles 1 application
S4
Make Model Engine Years
AUDI S4 (B5) 1999–2001

Fitment data last updated: 2026-09-30

Fits 1 vehicle applications Check vehicle fitment before ordering View fitment

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