Precision Raceworks Billet Coolant Cap Bundle | BMW facelift Wooden frame

Wooden frame

Can be easily used as trailing or leading mounting

Full-width air inlet spans entire radiator support

and oversized silicone hose

but a good-sounding one puts a smile on your face

Precision Raceworks Billet Coolant Cap Bundle | BMW facelift Wooden frameBundle and SAVE! Choose your color combo to dress up your engine bay! The Precision Raceworks Billet Coolant Cap Set is a functional and stunningly stylish way to add a nice touch to any engine bay! These caps 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.