Ecotec Oil Feed Fitting
This fitting will replace the existing oil galley plug and adapt right over to -4AN. It makes it VERY easy to hook up an oil feed line for your turbo kit. This also threads into the factory Cobalt K04 oil feed port to adapt it to -4AN. Make sure to use thread sealant on the m12x1.75 NPT connection.
Do not use sealant on the AN side.