If you are building your own intercooler piping this is just what you need! Our aluminum MAP sensor bung is designed to fit any 2001-2010 Duramax MAP Sensor and has a 3" radius machined into the bottom side. Machined from aircraft-grade 6061 T6 billet aluminum. Key Features: Compatible with: 01-10 Duramax MAP Sensor Bung, Air Intake, Duramax