Enhancing your L5P Duramax engine demands a careful balance of power and precision. This engine, featured in Silverado and Sierra models from 2017 onward, offers significant potential that many seek to harness. Whether you’re an experienced diesel performance expert or just beginning, determining the optimal starting point for upgrades can be both exciting and challenging.
iDash and CTS3: Your Engine’s Health Monitors
iDash and CTS3 monitoring systems stand out for their ability to provide real-time, detailed data on the various parameters of your L5Ps performance. This data encompasses a wide range of information.

Exhaust Gas Temperatures (EGTs)
High EGTs can be a warning sign of an overworked engine or a potential failure in the making. Monitoring these temperatures can help you adjust your driving style or load to prevent damage.
Fuel System
Increasing fuel filtration would significantly improve the longevity of the L5P Fuel System. A Donaldson or CAT fuel filter provides substantially more filtration then the OE filter that comes in these L5P models. The DmaxStore Billet Fuel Filter Adapter will take place of the stock filter allowing you to use a Donaldson or CAT Filter.

Boost Pressure
Understanding the boost pressure helps maximize the efficiency of the turbocharger. This way, you know you’re getting the best possible performance without pushing the turbo beyond its limits.
Transmission Temperatures
Keep an eye on the temperature of your L5Ps transmission, especially when towing heavy loads, to prevent overheating and promote smooth operation.
Helpful Tip
Both the iDash and CTS3 systems provide clear, easy-to-understand data at a glance. Even if you’re new to engine monitoring, you can make informed maintenance decisions.
Cooling Upgrades
The health of your transmission is paramount to the overall performance and longevity of your L5P Duramax. High temperatures are a major threat to this system, especially under heavy loads or during intense driving conditions. Addressing this issue head-on with strategic cooling upgrades can make a significant difference.
High-Capacity Transmission Pan
These types of pans increase the volume of fluid the transmission can hold and directly contributes to better thermal regulation. More fluid means more capacity to absorb and dissipate heat, keeping temperatures within safe operating limits even under stress. Additionally, these pans often feature built-in cooling fins that further aid in heat dissipation.

Transmission Cooler
By vastly increasing the system's ability to shed heat, a quality transmission cooler can lower temperatures by up to 40 degrees Fahrenheit. This level of heat reduction is crucial for preventing overheating, which can lead to transmission failure. With a design that offers up to 200 percent better heat dissipation compared to standard setups, a transmission cooler protects your investment by maintaining optimal operating temperatures.

Differential Cover
For a premier Duramax L5P upgrade to your cooling system, Banks products stand out for their superior design and effectiveness. They’re engineered to promote faster cooling, ensuring the differential stays within safe operating temperatures even under heavy use.
Pro Tip
Proper lubrication is critical for the axles and gears of an L5P Duramax to promote peak performance and longevity of the vehicle. The right fluids reduce friction and wear, ensuring axles and gears operate smoothly under all conditions.
Steering and Suspension
Owners of heavy-duty trucks need components that can withstand significant stress without compromising performance. This is where Kryptonite parts come into play, with quality and durability designed to meet the exacting needs of heavy-duty applications.
Kryptonite Upper Control Arms (UCAs) stand at the forefront of suspension upgrades. They’re engineered to enhance the suspension geometry and overall strength of your vehicle.
This means drivers will see immediate improvement in handling and stability. Whether navigating rugged off-road trails or hauling heavy loads, Kryptonite UCAs provide the confidence that your truck can handle the task with ease.

Front-End Package
For those seeking comprehensive improvements to their vehicle's steering and suspension, the Kryptonite ultimate front-end package represents the pinnacle of precision engineering. It completely overhauls the factory steering and suspension components, replacing them with high-quality alternatives that are specifically tailored for heavy-duty trucks. This upgrade transforms the driving experience by offering tighter steering response, improved vehicle alignment, and enhanced resistance to the impacts and stresses that can sideline lesser components.

Airflow Enhancements
Boosting your engine's airflow is a direct route to enhanced performance. Upgrading the turbo can increase airflow, providing more power while maintaining control over exhaust gas temperatures. This results in a more efficient setup compared to OEM turbos.
Cold Air Intakes (CAIs)
A cold air intake will bring cooler, denser air into the L5P engine to improve combustion efficiency. This means it uses less fuel, and the engine operates with less stress—extending its life.

Boost Tubes
Adding a larger turbo to your L5P? Upgrade your boost tubes while you’re at it! They promote cohesive system operation, minimize boost pressure losses, and allow more air and fuel into the engine. This upgrade increases your power and fortifies the system against OEM part failures that could leave you stranded.
