I purchased part number 77148533745 Stainless Steel Valve Cover Guards and received them yesterday. Unlike other BMW accessories that included an entire book on installation in 26 languages, all I got was a single piece of paper referencing the ASAP portal for instructions. Installation seems straightforward except for one piece. The parts fiche doesn't show it so maybe some here can help me out. The "extra" part is circled in red. Any ideas?