Click here to email me if you have any questions
For YouTube videos click here
Every ECU package sold includes:
I have been building MegaSquirt ECU's since 2003 and I'm one of the team who wrote the MS-Extra Code.
So you can be rest assured this is THE place to purchase your MS ECU, in the UK and EU, with the knowledge that you will be getting what you need, rather than what someone wants to sell you.
No other MegaSquirt sales website comes close to this one for information, knowledge and backup of MS ECUs!
Everything you need to know is on this site, that includes video help files! If you still have any questions then I can answer them due to my experience with the actual firmware the ECU's run and with the years of experience I have building and testing them!
ExtraEFI was setup in 2005 by myself with a simple aim; to supply fully assembled, tested and warranted MegaSquirt ECU's to a very high standard.
All my ECUs run the latest version of the MS Extra code. (Well, they would do, as I'm one of the authors of the MS-Extra code and author of the MS1-Extra and MS2-Extra manuals. I'm also an administrator of the MSExtra forum.)
MegaSquirt is a standalone DIY mappable Engine Management System that can control the fuel and spark or fuel only or spark only on virtually any liquid fueled spark-ignition engine, naturally aspirated or boosted.
Are you still confused about MegaSquirt? Click here.
A MegaSquirt ECU can give you mappable fuel and or mappable ignition using:
All of the ECU's I sell have the MS-Extra code loaded into them, these are the features that come as standard:
I hope you find this site a good source of information. I am constantly updating the site, especially the Support page, so please check back every so often.
The base configuration files are also there for you to try at your own risk, these are from people who have bought MegaSquirt's from me and have kindly sent me their finished files for others to benefit from or they are base files I have made to get people started.