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This gives excellent cooling with minimum back pressure
Progressive spring design for balanced performance
Multi-Profile Storage & Button Layout Mapping
Kit contents: DP41588R + GD1358
Constructed from high-quality aluminium with a satin black powder-coated finish
ARP Head Stud Kit - BMW N55 Configuration:Standard - (10) 11mm & (4) 9mm This gives excellent cooling withStrengthen the bottom end of your BMW N55 engine with the ARP Head Stud Kit BMW N55, delivering far greater clamping force and sealing than the factory fasteners. Engineered by ARP (Automotive Racing Products), this head stud kit is built to the standards demanded by high performance and motorsport BMW builds. Key Features Designed for BMW N55 engine Significantly increased clamping force over OEM fasteners Improved head gasket sealing and cylinder