Protect your Duramax MAP sensor from dirty exhaust gas and sticky oil buildup with the S&B MAP Sensor Spacer. It safely relocates your sensor out of the way of a contaminated air stream. A clean sensor maintains accurate measurements, resulting in consistent power and optimized fuel economy. Relocates MAP Sensor Dramatically reduces soot and oil buildup Keeps your engine running efficiently Extends the sensor service interval Billet aluminum construction Black Anodized finish with machined S&B Logo Includes stainless Torx bolt and Torx tool How to Clean your MAP Sensor