N54 BOV Line Upgrade For BMW 1M, 135i, 335i, E89 Z4, E60 535i 991 5 BAR plug & play

5 BAR plug & play TMAP adapters and Extensions

Available in anodized silver

Power gains of up to 100hp and 120wtq to the wheels on a stock truck without the risks of flashing

BMW E93 335i Convertible LCI (2011–2013)

N54 BOV Line Upgrade For BMW 1M, 135i, 335i, E89 Z4, E60 535i 991 5 BAR plug & playThe 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