Choose Options P3 Cars P3 Boost Gauge - VW B7 Passat NMS $259.00 FOR NORTH AMERICAN MARKET B7 PASSAT ONLY P3 Boost gauge Hard-wires in to power and ground and requires analog tubing to be run and connected to intake / charge pipeĀ (does not plug into OBD2 port)... Compare Choose Options Add to Wishlist