BMW B58 / S58 Billet Engine Fluid Cap Set Color:Blue Gain up to 10+ horsepower

Gain up to 10+ horsepower to the wheels

Our high-quality n54 downpipes are engineered to unlock the full potential of your N54 engine

the vehicle is never aware it's making more than the factory boost or power levels

BMW 323i (2007-2011)

Thankfully we have made a cap to replace the factory cap and do so in style

BMW B58 / S58 Billet Engine Fluid Cap Set Color:Blue Gain up to 10+ horsepowerBundle and SAVE! Choose your color combo to dress up your engine bay! The Precision Raceworks Billet Engine 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.