2.8L LWN Stealth MAP Sensor
The factory MAP (Manifold Absolute Pressure) sensor on the 2016-2021 LWN 2.8L Duramax is capable of reading up to 29 psi gauge pressure. If you want to make more boost than that, you will need to upgrade your MAP sensor. The unique advantage of the 2.8L LWN Stealth MAP Sensor is that our custom tuning has been specifically calibrated to work flawlessly with this MAP sensor and the Stealth DT44 Turbo.
Do You NEED an Upgraded 2.8L MAP Sensor?
The factory MAP sensor on the LWN 2.8L Duramax reads up to 29 psi (gauge) or 45psi (ambient). A 2.8L running DuramaxTuner's custom EFILive tuning will command about 28 psi in the Sport Tune depending on altitude and temperature. That means your truck is at the limit of the MAP sensor with just tuning. If you want to make more power than a 'tune-only' truck and you care about drive-ability, you need an upgraded MAP sensor.
A Stealth DT44 truck can be tuned without an upgraded MAP sensor to make more power than a stock turbo. However, it's dangerous. You will be relying on a custom tuner to safely set the min or max vane table in such a way as to keep the turbo safe. Furthermore, you will see no more than the 29 psi of boost reported on electronic gauges.
- Yes, you need an Upgraded MAP Sensor:
- Want to reach 280 HP
- Care about driveability
- Rely on your truck as a daily driver
- No, you probably won't need an Upgraded MAP Sensor:
- Stock Tuning
- Not interested in peak power
