CTS Turbo B5 S4 MAF Housing 85mm

Code: CTS-HW-040


2 in stock

2 in stock

Included Warranty

12 Months
All CTS Turbo products are warrantied against manufacturing defects for a period of 12 months from the date of invoice. Warranty does not cover abuse, misuse, consequential damages, normal wear and tear, improper installation, or damages resulting from racing. Warranties only apply to the original owner. If a product is found defective the customer will receive, at the discretion of CTS Turbo, free repair or replacement. Warranty on other manufacturers will be processed under their terms.


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

Additional information

Weight 2 lbs
Dimensions 6 × 6 × 6 in


There are no reviews yet

Be the first to review “CTS Turbo B5 S4 MAF Housing 85mm”



Make Model Year Generation
Make Model Year Generation
AUDI S4 1999 - 2001 B5