BMW B58 / S58 Billet Engine Oil Cap Color:Silver Preloaded with custom JB4 Mercedes

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

Includes replacement heavy duty couplers

and sound extraordinary

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

It's common knowledge that excessive heat can be extremely detrimental to your BMW transmission

BMW B58 / S58 Billet Engine Oil Cap Color:Silver Preloaded with custom JB4 MercedesThe 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