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Audi/VW SAI Filter Adapter preview
Mechanical/Functional

Audi/VW SAI Filter Adapter

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Description

Use most current revision STL file, rev B. When installing a "cold air" intake on Audi/VW vehicles equipped with secondary air injection (SAI), the inlet hose to the pump needs a filter since it normally connects to the factory airbox assembly. Aftermarket "cold air" intakes replace the air box assemebly. This adapter allows one to use a 1 inch ID breather filter on the SAI hose while utilizing the factory connector.

Published Jun 28, 2026Updated Aug 12, 2026

Originally published on thingiverse.com by David Fresne (fr3zno) · License: CC BY-NC-ND

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