1. OE# Compatibility: Exact OE# match ensures a precise fit for BM models with N55B30 engines, simplifying installation and helping ensure proper sealing. 2. Comprehensive Kit: Includes overhaul gasket set and head bolts, covering BM models with 3.0L L6 turbocharged engines. 3. Versatile Application: Fits a range of BM models from the 135i to the 740Li, accommodating a diverse range of vehicle owners. 4. Materials: Constructed from durable materials designed to withstand the rigors of engine rebuilding. Use scenarios Rebuild scenario: Used when restoring gasket integrity on a BM with an N55B30 engine, providing a complete overhaul gasket set and essential head bolts. Maintenance scenario: Suitable for planned maintenance or engine overhaul on 3.0L L6 turbocharged BM models, ensuring OEcompatible fit and fastener reliability. efficiency scenario: Ideal for workshops servicing multiple BM vehicles, offering standardized components that promote consistent performance and reduced installation time.