Tuning the Western Star 4884 FX

2015 Western Star 4884 FX

15.0L –  Diesel


Temic DDEC 10 ECU

The Challenge

Investing in heavy-duty trucks is a significant expense, and maximizing their performance and longevity is essential. In this blog post, we discuss tuning the Western Star 4884 FX. ECU tuning involves adjusting the ECU settings to optimize the engine, ensuring you get the most out of your investment.

The Western Star 4884 FX is equipped with a 15.0L engine. However, like most engines, its power output is limited by the manufacturer’s ECU settings. This means that your Western Star 4884 FX is capable of more than its current performance. Additionally, diesel engines face challenges with their emission systems, which can lead to reliability issues and a shorter lifespan. These emission system settings are controlled by the ECU and can be adjusted through ECU tuning.

The Solution

We use the Alientech KESS3 during the tuning process to ensure the best and safest results. Our approach to tuning is customer-centric, focusing on delivering the best and safest outcome tailored to the customer’s driving environment, needs and specific vehicle. We do not believe in a one-size-fits-all solution. Our tuning process results in increased power and torque for your Western Star 4884 FX, which can improve towing capabilities and overall performance.

Our emissions solution addresses the issues commonly associated with emissions systems, ensuring your truck remains reliable and on the road. Our tune not only improves performance but also saves you money and time through enhanced reliability, improved fuel consumption, and operational optimization.

Increased Power and Torque

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Power Increase


Torque Increase

Further Benefits Of ECU Tuning The Western Star 4884 FX

Increased Power and Torque

With more power and torque, a tuned truck can handle heavier loads and perform tasks more efficiently. It allows the truck to pull or push larger implements, haul heavier loads, and complete tasks faster, resulting in increased productivity.

Years of Development

We have been tuning Western Star’s 15.0L engine for years, and understand how they work as well as the limitation on factory hardware.


Easy and fast programming

Easy, fast and non-evasive via programming the factory-fitted diagnostic port.

Would you like to enhance your customers’ vehicles the way we’ve enhanced this Western Star truck? Contact us today to learn about becoming a dealer and adding a valuable service to your current business. Make your business dreams a reality!


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