Looking to add a 1/8” NPT bung to your custom turbo setup or intake tubing? PPE’s Billet Aluminum Couplers offer a straightforward solution. Made from durable billet aluminum, these couplers feature wide shoulders and angled ends for a tight, reliable fit. They accommodate various clamp sizes and are ideal for turbo ducting, water meth systems, nitrous, and gauge probes. Available in 2”, 2.25”, 2.5”, 2.75”, 3”, and 4” OD with a 5” length.