Aluminum Coolant Cap
Aluminum Coolant Cap

Aluminum Coolant Cap

Regular price $39.00 Sale

CNC aluminum 1.2 bar Cooling System Cap uses 100% original BMW internal components that have been recalibrated to vent at 1.2 bar vs. the factory 2.0 bar setting. Most modern cooling systems are calibrated at 1.0 - 1.2 bar to reduce stress on the plastic components, increasing the lifespan of the fragile plastic parts without affecting the performance of the cooling system. The top of the cap is CNC machined from 6061 aluminum, hard anodized black to prevent corrosion, and then laser etched so it looks cool.