Diesel Tuner's Blog

If you're considering custom tuning for your diesel truck for the first time, you've probably run into the question of which flash tool to go with. With so many options on the market, and so much buzz around certain tools it can be difficult to decide which one will provide the best tuning experience and features. In this article, we'll break down some of the most popular custom tuning flash tools on the market today—HP Tuners, EZ Lynk, EFI Live (SPADE), MM3, Edge CTS3 and Black Box Devices—to help you make an informed decision for your diesel truck.

What Is a Flash Tool?

Before we dive into the specifics, let’s quickly dive into what a flash tool is. A flash tool, or programmer, is at its core a diagnostic device/tool that will allow you to upload custom tunes to your truck’s ECU (Engine Control Unit) through the OBDII port of your vehicle. These tunes will go on to adjust various engine parameters like fuel delivery, timing, boost pressure, and transmission settings to optimize your truck’s power and performance. The right flash tool will allow you to easily tune and monitor your diesel's performance, giving you the advantages of diagnostic insights at your finger tips and comprehensive control over your vehicle.

Let’s take a closer look at each of these popular flash tools and what they have to offer.

If you've ever been in search of emissions in tact tuning for your diesel truck you've probably come across the 49 state and or 50 state tuning label. While it may only seem like the difference between one state. How much of a difference can one state make? The answer may surprise you. This article will try to answer the top five most common questions regarding 50 state tuning. 

1. What is the difference between 49 and 50 state tuning?

2. Will I only need 50 state tuning if I live in California? 

3. Do 50 state tunes make less power than 49 state tunes?

4. Will 50 state tuning void my factory warranty?

5. Who is 50 state tuning made for?