Tuning Software



Tunerpro is a software package designed for the DIY tuner. It does one thing, edits bin files, and it does it very well.

It is free, and requires a definition file to work…

Well, I have worked very hard to make a definition file that works well with tunerpro, and here it is. It is heavily documented with comments, and all of the parameters are categorized.

You can grab the latest version here

Loading tunerpro with this XDF and switching to ‘Category’ view provides an excellent tuning environment that should make any LT1 enthusiast happy:

It DOES NOT flash ecms, and requires standalone software (see below) to become a complete lt1 tuning solution.


LT1Edit was written by one of the first researchers into the EE platform. This is a dedicated editor written for one platform only, and is not extensible.

It provides a built-in flash utility. It has the LEAST amount of parameters available of any EE tuning solution, due to being fairly out of date and being geared towards the beginner. It currently costs $200 and is locked to a single ECM.

I can’t recommend purchasing this software package nowadays.


Tunercat is a package designed to edit bins for a wide variety of platforms, including the LT1. It is extensible and capable.

The maintainer of tunercat is a very capable bin hacker, and has discovered many of the parameters now known to the LT1 tuning community.

His software is affordable, not restricted to a single ECM, and has a built-in flash utility.

Standalone Flash Tools

If you’re using tunerpro, you will also need a flash utility of some type. Assuming you do not already own LT1Edit or Tunercat, there are three standalone options:


This is in my opinion one of the best flash tools out there.  I say that because I wrote it myself.  Really though, it’s modern, fast, has top end features, and is designed to be incredibly safe and resistant to bricking your ecm.  Go get it for free here.


This software will have its flash tool removed soon, as the free flashhack tool (above) is much better.

My own software.  It doesn’t edit bins, since I believe Tunerpro does that best, but it datalogs, analyzes, tweaks, and reprograms your ECM.


From the maker of tunerpro, Winflash is another excellent standalone flash utility.  It’s $20, and a 30 day trial is available.


My tuning documents will assume you are using tunerpro with my EEX definition file for editing, flashhack for reflashing, eehack for logging.