N54 BOV Line Upgrade For BMW 1M, 135i, 335i, E89 Z4, E60 535i 428i (F32) The JB4 features a simple

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

no welding design allows for a quick installation with no drilling required

3rd gear runs

Can Fluid Capacity: Up to 12 oz (355 mL)

Connection style: OEM Weatherproof Quick Connect

N54 BOV Line Upgrade For BMW 1M, 135i, 335i, E89 Z4, E60 535i 428i (F32) The JB4 features a simpleThe ARM N54 BOV Line Upgrade will help your BOV open and close completely and quickly. The ARM N54 BOV Line Upgrade allows you to replace the standard 1 8" line with a 1 4" line, doubling the size to allow ample pressure. Upgrading the diameter of the vacuum line running to the BOV ensures proper BOV function. With a smaller 1 8" line you can experience surging or over boosting if the BOV is not activating properly. HIGHLIGHTS Allows for 1 4" Vacuum