BMW Auxiliary Coolant Reservoir Cap Color:Black Bmw 540i 2017 to 2023

Bmw 540i 2017 to 2023

Fuel economy unaffected during light throttle cruising

supporting up to 550 WHP (rated for 475 WHP on 100% E85)

and enhances the interior's aesthetics with a modern

BMW Auxiliary Coolant Reservoir Cap Color:Black Bmw 540i 2017 to 2023The Precision Raceworks Auxiliary Coolant Reservoir Cap is a functional and stunningly stylish way to add a nice touch to any engine bay! This cap come in three color options so there is always a color that will work for you! Black with Billet, Black with Blue, and the Stealth series (all black). Many people don't realize it but the OEM caps have a pressure release valve built into them. Often times aftermarket companies don't know this either or just