Boost Adapter Gauge Meter Adaptor For S F54 F55 F56 B48 Mk3 This adapter is designed to allow installation of a boost gauge without cutting any pipes in the engine bay, maintaining a factory-like appearance.Constructed from aluminum, it features a compact and lightweight design.The is anodized for resistance to corrosion.Includes a black anodized cap, stainless steel Allen bolts and washers, a brass drain fitting, and hose for a clean and straightforward installation.Compatible with existing hardware and wiring harnesses for a direct fit plug-and-play setup.Installation is simple with step-by-step English instructions included.Suitable for S F56 models from 2014 to 2019, F55 five-door variants, and F54 Clubman models.