
CTS Turbo B5 S4 MAF housing adapter for 85mm
The CTS Turbo MAF Housing Adapter is built for the B5 S4 paired with the CTS 85mm MAF housing. It drops into your existing intake tract for a seamless fit, so you can keep running the factory S4 airbox while enjoying smoother power delivery and more consistent MAF readings.
Fitment
- Audi B5 S4 with CTS 85mm MAF housing
- Designed to work with the factory S4 airbox
Ships from our Vancouver shop — KORE SPEED is proudly Canadian-owned, with no surprise cross-border duties for Canadian buyers. Questions on fitment? Email support@korespeed.com.
Pairs well with

CTS Turbo B5 S4 MAF housing adapter for 85mm
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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