- Stand out from the crowd with a sleak and updated look on your BMW M Car.
- Set your BMW M Car's engine bay apart from others with this headturning coolant overflow cap.
- T6 Billet Aluminum
- CNC Machined
- Anodized Finish
- Made in the USA
- Limited Lifetime Warranty
- 2007-2013 BMW E9X M3
- 2016-2018 BMW F87 M2
- 2019+ BMW F87 M2 Competition
- 2015-2020 BMW F80 M3
- 2015-2020 BMW F82 M4
- 2011-2017 BMW F10 M5
- 2012-2018 BMW F06/F12/F13 M6
- 2018+ BMW F90 M5 (incl. Comp)
- 2020+ BMW F9X M8 (incl. Comp)
The Series Billet Coolant Expansion Tank Cap Covers are the most complex pieces created to date. Meticulously designed and created in house to the highest precision and quality seen on the other products giving the factory units an all new form factor. Give the plain plastic factory coolant caps an upgrade with the brand new BLACKLINE Performance Coolant Expansion Tank Cap Cover. Each cap is CNC formed from T6 Aluminum and anodized with an Anthracite Gray color to compliment the factory engine cover. All logos and decorations are finalized through the precision 3D milling process, machined into each cap for the ultimate premium finish. The BLACKLINE Performance Billet Coolant Expansion Tank Cap Cover will fit most BMW vehicles equipped with the N55, S55, S63, and S65 engine (check your coolant cap ensuring that it is the same shape as seen in the product photos).
Each kit comes with a Billet Coolant Expansion Tank Cap Cover, and an Installation Instruction Card. This is a not a full cap replacement. The Billet Cap Cover affixes to the top of your factory coolant cap installing easily in minutes.