Building a turbo setup? This 0.035\ restrictor fitting is crucial for controlling oil flow to your turbo. It adapts from -3 AN male to 7/16-24 UNF female, so you can connect your oil feed line properly. Prevents over-oiling, which can cause seal leaks and turbo failure. Made by NGAP, part #NGAP-1346. Essential for high-performance and custom turbo applications. Whether you're running a Garrett, BorgWarner, or other turbo, this little fitting keeps everything running smoothly. Includes a manufacturer warranty for peace of mind. Don't skip this small but vital part in your build.