You are viewing a Kraken Automotive Aluminum Weld Bung. Weld bungs are most commonly used when needing to attach AN lines to areas that don't currently have an AN flare. A few examples would be: Intercooler piping, Intake manifold, or even a custom overflow tank! All of our weld on fittings have minimal anodizing to ensure proper and ease of welding. Teflon tape and sealing compounds are not needed as the machined 37 degree flare fitting does all the work when used correctly. If you're looking for a reliable fitting or to add some extra color to your engine bay, look no further.