For added oil capacity and cooling potential the AAM Spec Oil Pan Spacer is a great upgrade. We found some things lacking with other similar options on the market. These include the overall fit and finish, and complexity of tapping an unconventional shape for oil temp. gauge and oil return lines for turbocharger/supercharger applications. Check out our line kit for use with this oil pan spacer for a simple oil return line solution in turbocharger/supercharger applications.