The Wagner Tuning Pro-Series cylinder head stud set is specified for the BMW S55 engine and supplied as an 18.8mm head stud kit. It functions as a direct engine fastener solution intended for that high-performance BMW engine. This head stud set addresses the fastening needs of the S55 platform by providing purpose-built studs for cylinder head retention where this spec is required during assembly or service.
Wagner Tuning BMW S55 Engine Pro-Series 18.8 Cylinder Head Stud Set