Electronics in vehicles are a blessing and a curse. When they work, the possibilities are near endless. When they don't work, mileage, performance and engine stability can all go out the window. When the Powerstroke MAP sensor in 6.7L Powerstroke gets dirty, you can experience poor fuel economy and reduced engine performance. However, the MAP sensor sits in a position that allows it to get covered in oil residue and soot over time causing those pesky engine performance deficiencies. With S&B's MAP Sensor Spacer, it pulls the delicate filament out of the stream of all those contaminates, promoting longer life, service intervals on the sensor, and supports stable, reliable engine performance.