The diesel engine is known for its power, performance, and fuel efficiency. It is extremely reliable and useful for towing heavy loads, but not all of this power is available to you right out of the box.

Therefore, it is no surprise that there are numerous aftermarket products designed to draw out every ounce of performance from your diesel engine. With the swarm of them available, however, it can be a hassle deciding where to begin.


So here is a list of 11 modifications that you can make to your diesel engine to enhance its performance:

1. Exhaust

The stock exhaust on your diesel engine comes with a small diameter pipe with quite a lot of odd bends and pinches that impede the engine's ability to push the exhaust gases.

Installing an aftermarket exhaust with a larger diameter and fewer bends not only helps the engine release exhaust gases much more efficiently; but it also improves the sound of, and provides better breathing for the engine, increases torque and horsepower, and keeps the exhaust gas temperature low; all of which drastically improve the performance and life of your engine.

2.  Electronic Control Module

The Electronic Control Module, or ECM, is a small black box that controls the performance metrics of modern vehicles. It is packed with numerous lines of codes that control the electronic functions of your diesel vehicle.

However, the stock ECM locks away the true potential of your truck to meet the government's guidelines.

Therefore, to unleash your vehicle's hidden potential, install an aftermarket ECM that can adjust the performance, with controls such as fuel injection, turbo boost pressure, transmission shifting, and much more.

3.  Air Intake System

Diesel engines require unimpeded airflow to give out the best performance. The greater the airflow through the engine, the more the oxygen available for the engine to burn fuel, and the more the power output.


The stock air intake system restricts airflow to a great extent in two ways: the first is due to the design of the intake system, and the second is due to the high capacity paper filter inside the box that slows down the flow of air.

4.  Gauge

With more upgrades being made to your diesel vehicle, you require more gauges to provide you with the right information should anything go wrong with your engine.

With a pyrometer, you can keep an eye on the exhaust gas temperature. You can then install a boost gauge, which will monitor the turbocharger's performance.

5.  Transmission

When tuning your diesel vehicle to give out more power, it's easy to overlook the transmission. However, installing an aftermarket transmission is necessary for the engine to handle all that extra power.

6.  Torque Converter

A torque converter that can withstand the assault of increasing the horsepower is essential, as the clutch inside the stock converter tends to slip, leading to more friction and heat.


7.  Turbocharger

A turbocharger helps to force more air into the engine to produce more power. It is driven by exhaust gases and a compressor that pressurizes the absorbed air, boosting the engine's performance.

8.  Injectors

Once you have worked on getting enough fuel and air into the engine, you need to look at a new set of injectors.

The role of injectors in a diesel vehicle can be huge, and the aftermarket injectors provide the right flow of diesel required for your engine.

9.  Intercooler

A turbocharged engine requires an intercooler to cool the air that leaves the turbocharger before it reaches the engine. Stock intercoolers are perfect for stock diesel engines, but with aftermarket parts installed, you need an aftermarket intercooler.


10. Nitrous Oxide

Another useful upgrade is a nitrous oxide injection system that drives nitrous into the absorbed air, which then breaks down and provides more oxygen molecules for combustion, generating more power. Nitrous comes in bottles, and the fun ends when it runs out.

11. Chemical Intercooler

The final upgrade you may find useful is a chemical intercooler with water or methanol injections that provides increased power and cooler temperatures.




Author's Bio: 

Avita is a passionate writer and cook from the state of Florida. she is a UNC Chapel Hill graduate and was a college swimmer there. Now that he has retired from the pool he helps clients create content that can help engage their audience on their website blogs