GoldenWrench BMW N55 M Car BLACKLINE Performance Engine Cap Set (F20 M135i, F22 M235i, F87 M2 & more) Colour:Grey Integrated pressure control oil bypass

Integrated pressure control oil bypass – no need to transfer OE valve

This aerodynamic upgrade delivers a sleek and aggressive look with perfect fitment

Sturdy metal key ring for secure attachment

fuel pressure

GoldenWrench BMW N55 M Car BLACKLINE Performance Engine Cap Set (F20 M135i, F22 M235i, F87 M2 & more) Colour:Grey Integrated pressure control oil bypassThe upgraded BMW N55 Engine BLACKLINE Performance Cap Set available in grey, blue or red. Meticulously designed and created in house to the highest precision and quality as seen on Goldenwrench's other products, giving the factory units an all new form factor. We bring to you the newest addition to the BLACKLINE product family for the next generation of M Vehicles. Give the very plain plastic factory oil and coolant caps an upgrade with a brand new