BMW Auxiliary Coolant Reservoir Cap s55tuning for a full plug and

for a full plug and play upgrade

In most cases

10 Micron USA-made inline fuel filter

The JB4 features a simple plug and play installation harness for easy installation and includes many features not found on any other tune

BMW Auxiliary Coolant Reservoir Cap s55tuning for a full plug andThe 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