Looking to clean up the engine bay of your B8 S4? The CTS Turbo B8 SAI breather bracket and adapter are used when installing an aftermarket intake on B8 & B8.5 Audi S4, this bracket and adapter allow for the SAI filter to be fixed securely in the engine bay. Product Details: - Billet SAI breather adapter and Billet bracket - T6061 aluminium construction - No SAI filter is included (available separately from drop-down menu)