fuel. Spark. Tuning.



Fuel. Spark. Tuning.

Bring new life to your car by taking control of fuel and spark, tuning every ounce of performance from your motor.

Whether you’re tuning your daily driver, dialing in the new engine in your race car tune, looking for a pre-built MegaSquirt ECU, or just need advice on how best to take the DIY road. We’re eager to share our knowledge and passion.


Contact Us

We like to give individual service to each of our customers. Let us know how we can help with your build.


About SpitfireEFI

SpitfireEFI was officially launched in early 2007 to provide car enthusiasts with the engine management tools to take their projects to the next level. Whether you're looking to tune up your daily driver, or your heart pumps 104 octane race fuel, SpitfireEFI can provide you with the engine management solution to fit your needs. 

We specialize in custom installation and tuning of MegaSquirt based engine management systems. MegaSquirt was chosen as a base platform due to its amazing flexibility, powerful functionality, global user-base and great value. 

Since 2004, we have been tuning and installing engine management systems on cars in the Pacific Northwest. Our experience with standalone fuel management stems from a variety of successful projects, and we are always looking for the next challenge!

Projects and Gallery

samples of our builds and customer cars


Helpful Info and Downloads

We continue to host a variety of base maps, full tunes, and helpful installation related instructions on our new Downloads page. This is now reliably hosted on an accessible Google Drive.

At the top level you can see all of the various help files and installation instructions we’ve assembled over the year. The different folders contain .vex fuel maps and .msq complete settings files for the different engine and vehicle setups.

Drop us a line if you have any questions, or want to get your tune dialed in.



Ready to buy? Have a general question about MegSquirt?

Whether you're not sure how to jumper your MegaSquirt to drive the coil packs on your Subaru, or if a new MegaSquirt 3 is right for your project, feel free to email us!