Banks MAP Spacer Kit Upper Sensor Only 17-25 GM 6.6L Duramax L5P

Under the hood can be a dirty place. Exhaust gas and sticky oil buildup get in the way of your sensor's ability to give accurate readings. Accurate readings you need to ensure proper air-fuel ratios are calculated by your Duramax’s ECM. Cleaning the sensor takes time and more importantly downtime with your truck. So if you depend on your sensors, your sensors need to depend on you to keep them out of harm's way. Use Banks' MAP Spacer Kit to place your sensor away from the contaminated air stream and give you consistent accurate readings improving power and fuel efficiency.

NOTE: This is for the upper sensor only.