High-Boost Crankcase Ventilation Adapter for S58/B58(TU) Engines

Building or running a high-boost, high-powered S58 or B58(TU) engine? Boost increases crankcase pressure, which, if left unchecked, can lead to issues such as smoking, power loss, and even engine failure. Adequate venting is essential for optimal performance and engine health.

While some believe a -10AN vent is sufficient for these builds, the truth is: it's not. To address this, we developed a larger, more effective solution for our builds-now available for everyone.

Our low-profile adapter securely snaps in place, replacing your oil cap and providing a platform for a -16ORB fitting in a variety of configurations. Choose from -12AN to -20AN fittings, depending on your build's needs. At just 10mm thick, this adapter maximizes hood clearance for versatile venting options.

Kit Includes: