The 3.0-liter CRD engine found in the Jeep Grand Cherokee WK2 is manufactured by VM Motori, an Italian diesel engine specialist. This engine is known for its robust performance and durability, and it has been a popular choice in Jeep Grand Cherokees since it was first introduced. VM Motori’s engines are well-regarded in the automotive industry, offering a solid foundation for both reliability and tuning potential.

How to Increase Horsepower in Jeep Grand Cherokee?

Increasing the horsepower in a Jeep Grand Cherokee can be achieved through several tuning and modification strategies:

  • ECU Remapping: Adjusting the ECU settings can significantly increase engine power and torque. This is often the first step in tuning as it provides a good balance between cost and performance gain.
  • Turbo Upgrades: Installing a larger or more efficient turbocharger can substantially increase the engine’s capacity for power.
  • Exhaust System Modifications: Replacing the stock exhaust system with a high-flow, less restrictive setup can improve exhaust gas flow, thereby increasing power.
  • Intake System Enhancements: Upgrading to a high-performance air intake system can increase the amount of air flow into the engine, which is crucial for making more power.

For owners of the WK2 Jeep Grand Cherokee looking to optimize their vehicle’s performance, a professional WK2 Jeep Grand Cherokee remap provides a significant boost in power and efficiency.

Grand Cherokee WK2 getting tuned. Remap, custom dyno tune
ECU on bench remapping remaped

Can You Tune with a Stock ECU?

Tuning a vehicle with a stock ECU is not only possible but also quite common. The stock ECU can be reprogrammed to better manage the engine’s fuel injection, ignition timing, and air intake parameters. This remapping adjusts how the engine runs to improve performance without the need for replacing any of the factory hardware.


Tuning your WK2 Diesel Jeep Grand Cherokee offers a great way to enhance its performance and tailor it to your driving preferences. From ECU remapping to more involved modifications like turbo and exhaust upgrades, there are numerous ways to increase horsepower and improve the overall driving experience. With the right modifications, your Grand Cherokee can deliver increased power for more demanding driving conditions, making it a more thrilling and capable vehicle on and off the road.