MAP Sensor bung

Ever ran a vacuum line through a firewall and had it melt or cut through the line? Or run a vacuum line through a wiring grommet and had it get pinched closed? 
Here is the solution for that, a bulkhead fitting. A great add on to any standalone ECU or boost gauge install, making for a reliable, clean looking install.

Requires an 8mm (5/16") hole drilled through a maximum of 6mm (15/64") thick firewall or plate. Hole ID is 4mm (5/32").