3.5" to 3.0" silicone adapter used for installing the Euro or 540i HFM with a stock rubber intake boot. If you're using a 3.5" HFM on an E36 or with an M50/S52 conversion this adapter will be needed to fit it with a stock intake boot.
Emissions Notice: This product is a direct replacement for the original and closely replicates or improves on the original in fitment, form, and function. As a direct replacement upgrade it has not been designed to trick or disable any emissions controls. It is designed to work with all factory emissions controls in place. However, it has not been evaluated nor tested for emissions compliance and is not legal for installation or use in California on any pollution controlled motor vehicle or in any state, province, or jurisdiction governed by, or which has adopted, CARB regulations for aftermarket parts.
BMW Fitments:
3 Series
E36 (92-99) > M3 (96-99)