ECU Tuning for GMC Terrain Diesel (2018+)
(LH7 1.6L Inline-4 Turbo Diesel)
(Delco E98 ECU) 
 
Terrain LH7 Tuning Potential:
 
- - STOCK HP & TQ - -
140 HP / 239 FT-LB (325 Nm)
 
- - STAGE 1 - -
160 HP / 280 FT-LB (380 Nm)
 
- - STAGE 2 - - [+$100]
190 HP / 291 FT-LB (395 Nm)
Requires Terrain Mods:
DPF Delete
 
Stock power and gains vary based on conditions and state of the vehicle.
 
The GMC LH7 1.6-liter turbo diesel engine is a relatively small but powerful engine that is designed to deliver impressive fuel economy and performance. Also known as the “WhisperDiesel” engine for its quiet and efficient operation. It is currently available in the GMC Terrain, Chevrolet Equinox, and the Chevrolet Cruze. This engine features a variable geometry turbocharger and a high-pressure common rail fuel injection system. Overall, the GMC 1.6-liter turbo diesel engine offers a balance of power and efficiency, making it an excellent choice for those who require a capable and fuel-efficient vehicle.
 
There are several reasons why you might consider GMC Terrain Diesel tuning, including:
 
- Increase Horsepower & Torque: The most noticable benefits of tuning your ECU is the increase in horsepower and torque. Even without aftermarket modifications, you can see a significant improvement in your engine's performance, resulting in faster acceleration and a more engaging driving experience.
 
- Improve Fuel Efficiency: While more HP and TQ is often the primary goal of tuning, many tuning parameters can also result in improved fuel efficiency. By optimizing the engine's performance, you can reduce the amount of fuel needed to accelerate and cruise, saving you money at the pump.
 
- Enhanced Reliability: By addressing common issues from the factory and making the engine more efficient, you can reduce the risk of breakdowns and extend the life of your vehicle.