N54 BOV Line Upgrade For BMW 1M, 135i, 335i, E89 Z4, E60 535i hyundai Includes an integrated velocity stack

Includes an integrated velocity stack for maximum flow and comes pre-oiled with blue or red filter oil and a new clamp

blending luxury aesthetics with practical enhancements

2013–2017 – BMW 640i Gran Coupe – N55

Stored maps available for 91/95ron and 93/98ron for manual and DSG

N54 BOV Line Upgrade For BMW 1M, 135i, 335i, E89 Z4, E60 535i hyundai Includes an integrated velocity stackThe 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