BMW B58 / S58 Billet Engine Oil Cap Color:Silver enhancing both the look and

enhancing both the look and performance of your vehicle

Preloaded with custom JB4 Mercedes tuning software and up to 8 maps for various fuel and modification levels

Performance Gains

E85 compatibility

Don't wait until your driving home in limp mode to upgrade this critical component of your N55

BMW B58 / S58 Billet Engine Oil Cap Color:Silver enhancing both the look andThe Precision Raceworks Billet Engine Oil 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 don't