Engine: 3.0L 4JJ-1 Inline 4 Cylinder
Transmission: Manual/Automatic
Turbocharger: Single
Tuning Method: ECU Remap via Bench or OBD
Exhaust Upgrade Available: Yes
Turbocharger Upgrade Available: Yes
Intercooler Upgrade Available: Yes
Hi-Flow DPF: No
Special Notes:

About the Holden Colorado RC 3.0 4JJ-1

The Holden Colorado RC 3.0 4JJ-1 is a specific variant of the Holden Colorado, a mid-size pickup truck produced by General Motors (GM) and sold under the Holden brand in Australia and New Zealand. The "RC" in the name indicates the generation of the Colorado, with the RC generation being produced from 2008 to 2012.

The "3.0" in the name refers to the engine size, which is 3.0 liters. The 4JJ-1 is the engine code for the diesel engine used in this specific variant of the Colorado. The 4JJ-1 is a common rail direct injection (CRDI) diesel engine that was developed by Isuzu, a Japanese automaker. It's known for its reliability, durability, and fuel efficiency.

The 4JJ-1 engine is a 3.0-liter turbocharged four-cylinder diesel engine. It typically produced around 120-147 horsepower (89-110 kW) and had a torque output of approximately 280-360 Nm of torque, depending on the specific variant and tuning. The Colorado RC 3.0 4JJ-1 was available with both manual and automatic transmission options.

It typically comes with rear-wheel drive (4x2) or four-wheel drive (4x4) configurations, making it suitable for various driving conditions, including off-road use. The Colorado is known for its strong towing capacity and payload capacity, which makes it a practical choice for both work and recreational use.

The interior and features of the Holden Colorado RC 3.0 4JJ-1 can vary depending on the trim level and options chosen. These trucks typically offer a comfortable and spacious cabin, along with various convenience and infotainment features. Overall, the Holden Colorado RC 3.0 4JJ-1 was a popular choice in the mid-size pickup truck segment due to its robust engine and capability for both work and recreational activities.

Custom Dyno Tuning for Holden Colorado RC 3.0 4JJ-1

Your Holden Colorado RC 3.0 4JJ-1 can become significantly slower when towing, especially when your air conditioning and other accessory systems require power to run, and the engine provides that power.

Many drivers feel frustrated while driving, making simple overtaking a big problem. Applying full-throttle is a natural reaction when they think their Holden Colorado RC 3.0 4JJ-1 is incapable of performing as they expect.

This is because a diesel engine is meant to deliver a strong "torque" delivery and towing force at middle engine speed ranges (2000-4000rpm). As a result, the car cannot complete an overtake even at full throttle if driving on a gently sloping road with a medium load onboard.

This results in potentially unsafe driving conditions and higher fuel consumption.

Holden Colorado RC 3.0 4JJ-1 ECU Remap

Diesel Tuning Brisbane Tailored ECM Tuning gives your Holden Colorado RC 3.0 4JJ-1 an additional 35 Horsepower of power and 21% of extra torque with a 100NM gain over stock, resulting in a much more responsive and safer car.

Holden Colorado RC 3.0 4JJ-1 Performance Modifications

To add a more pronounced exhaust note, fitting a Holden Colorado RC 3.0 4JJ-1 PERFORMANCE EXHAUST also enhances response and exhaust note. See more about performance exhausts for your Holden Colorado RC 3.0 4JJ-1 by clicking here.


A Stage 1 tuning package is a popular enhancement choice among diesel car enthusiasts seeking to boost their vehicle’s performance without compromising reliability or drivability.

The typical Stage 1 Diesel tuning package for a diesel car involves adjustments to the engine’s software or ECU (Engine Control Unit) to optimize its performance. This leads to a notable increase in power and torque, enhanced throttle response, and an overall improved driving experience.

These modifications contribute to heightened engine intake and exhaust flow, resulting in improved breathing and enhanced power delivery.

It’s crucial to recognize that any alterations to your diesel vehicle’s engine could potentially impact its reliability, emissions, and warranty. Consequently, it is advisable to select a reputable tuning company with expertise in diesel vehicles, capable of offering a customized tuning package tailored to your specific requirements and objectives.

In summary, a Stage 1 tuning package for diesel cars can be an excellent means to elevate performance and driving enjoyment. However, it is essential to carefully weigh the potential risks and benefits before proceeding with any modifications to your vehicle.

Stage 2 Package Inclusions:

  • Custom Dyno Tune (ECU Remap) or ECU Flash

A Stage 2 Diesel tuning package typically involves more comprehensive modifications to the engine and other performance components compared to a Stage 1 upgrade. This can encompass additional enhancements to the intake and exhaust systems, as well as upgrades to the intercooler.

Opting for a Stage 2 tuning package brings a notable increase in power and torque output when compared to a Stage 1 package. 

It’s crucial to bear in mind that a Stage 2 tuning package can have a substantial impact on your vehicle’s emissions. Thus, selecting a reputable and experienced tuning company is essential to receive a custom-tailored package that aligns with your specific goals and requirements.

If you’re contemplating a Stage 2 tuning package, a thorough consultation with the tuning company is recommended to discuss potential risks and benefits, as well as any necessary modifications for optimal performance and reliability. Additionally, it’s vital to ensure that all modifications comply with local emissions regulations and safety standards.

Stage 2 Package Inclusions:

  • Custom Dyno Tune (ECU Remap)
  • Intake/Intercooler Upgrade
  • Exhaust Upgrade

A Stage 3 Diesel tuning package typically involves substantial modifications to enhance overall performance. This may include upgrading critical components such as the turbocharger, intercooler, fuel system, intake and exhaust system, and potentially other upgrades depending on the requirements. Additionally, upgraded drivetrain and suspension components are often necessary to handle the increased power output.

Opting for a Stage 3 tuning package brings a significant boost in power and torque compared to Stage 1 or Stage 2 upgrades. However, it’s important to note that this level of modification is not recommended for daily drivers, as it may lead to reduced reliability, increased emissions, and decreased drivability in traffic.

It’s crucial to be aware that a Stage 3 tuning package may potentially void the factory warranty and could be deemed illegal in certain jurisdictions. Hence, selecting a reputable and experienced tuning company becomes essential to receive a customized package meeting specific goals and requirements, all while ensuring optimal performance and reliability.

In summary, a Stage 3 tuning package for a diesel vehicle represents a substantial upgrade, suitable for experienced and knowledgeable enthusiasts willing to accept the associated risks and compromises with this level of modification.

Stage 3 Package Inclusions:

  • Custom Dyno Tune (ECU Remap) Custom
  • Transmission Tune Cold
  • Air Intake Upgrade
  • Intercooler Upgrade
  • Turbo-Back Exhaust Upgrade


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