Welcome!! DIYAutoTune is THE source for high performance Standalone Engine Management Systems for maximum performance on the race track, off road park, etc. Whether you drag race, road race, autocross, rally or drift, we’ve got you covered with the best engine management in the business. We get it– you need the capability to tune your engine for maximum performance, with data analysis capabilities to help you squeeze every drop of performance out of your engine, and the hottest ignition systems available to reliably light off your mixture every time — and yes, we can help you!
Who is DIYAutoTune?
We manufacture, right here in Gainesville, GA USA fully standalone engine management systems. Our company was born and bred here, starting in spare bedroom in 2005 with an idea and a few dollars – and growing to now 20-something people working out of 25,000 square feet here in Gainesville building some of the best automotive electronics in the business to help you get your ETs and Lap Times down to record lows.
In short– we give you the power to tune your engine to perfection.
We all like tools right? Tools that let you do things that you couldn’t do as effectively otherwise? That is what we do. We give you the most powerful tool you’ve likely ever wielded before. The engine tuning capabilities of our Engine Management Systems are about to rock your racing program. Get ready for it!
To get the party started– we give you the power to tune your fueling and ignition advance, the core basics of reliability, smooth operation, and maximum horsepower.
But we’re just getting started there!
We also give you launch control (2-step), flat shift, turbo boost control allowing you to set your boost curve just how you like. We have engine safeties to help you to protect your engine by setting up how the system handles high temperatures or low oil pressure allowing you to safely shut down then engine before you hurt something. Knock Control. Cooling fan control.
The truth is, we offer you ‘just about anything control’. If you can dream it up, we can usually help you do it.
Which Engine Management System is right for you?
| MSPNP and MSPNP Pro Plug and Play ECUs | MS3Pro Evo / Ultimate Universal Wire-in ECUs | Traditional MegaSquirt EFI Systems and MegaSquirt Kits |
|---|---|---|
 MSPNP Gen2 for Fox Body Ford Mustangs |  MS3Pro Ultimate ECU |  Legacy MegaSquirt-3 ECU |
| MAKE IT EASY! These PNP ECUs are engineered for specific vehicles, and we do all the hard work. The MSPNP Gen2 and MSPNP Pro (aka MS3Pro PNP) are designed to plug right into your factory wiring harness. It couldn’t be easier to install fully tunable standalone engine management ready for the track — in most cases, you simply unplug your factory ECU, plug in the MSPNP in it’s place, and route a single vacuum line from your intake to the ECUs built in MAP sensor. Fire it up, set base timing, and you’re ready to fine tune to your exact needs based on the modifications and upgrades you’ve made to your engine. Mazda Miata, Ford Mustang, BMW E30 and BMW E36, Buick Grand National, Nissan 240sx, Toyota MKIV Supra 2JZ, Porsche 944S / 944S2, Toyota MR2, and several other models. Just check em out! Oh, and there are several other models on the way! Click Here for more information on our MSPNP Gen2 Models Click Here for more information on our MSPNP Pro (MS3Pro PNP!) Models | Run just about any engine for any motorsport. The MS3Pro Evo and Ultimate ECUs are flat out the best bang for the buck in the wire-in Engine Management Game. Full control for any MultiPort Injection (MPFI) or Throttle Body Injection (TBI) engine up to 12 cylinders. With the Race Ready featureset to put you in the winners circle! Often imitated by the ‘big names’ that make their products overseas somewhere – we have consistently been trend setters in the industry with a featureset that others continue to try and catch up with. Things that just make your life easier, like a ‘Test Mode’ that lets you test each individual fuel injector and ignition coil and most everything else the system controls makes for an amazing ‘pre flight checklist’ or diagnostic feature if you ever need. And individual cylinder tuning allowing you to perfectly balance the air/fuel distribution to each cylinder giving you the ability to make maximum horsepower SAFELY, without running some cylinders richer or leaner than other cylinders. And we an auto-tune it! That’s right, with the right sensors in place, our system and the TunerStudio software, will tune those individual cylinders to perfection FOR YOU! Click Here for more information on MS3Pro Evo and Ultimate Universal wire-in Standalone ECUs Got an LS Engine? Want an MS3Pro with LS Wiring Harness ready to drop right on your engine and fire it up? Click Here! MS3Pro Evo and Ultimate Feature Comparison Chart | Engine Management on a budget! Ah… the systems that started it all. DIY Style MegaSquirt EFI Systems. Whether it’s MegaSquirt-2 allowing for two channels of fuel or MS3 allowing for up to 8 channels, these budget oriented systems, that were originally designed as educational oriented systems, just flat do work. They might be more affordable, but I’ve watched them set world records as well. We’ll build them for you, or we’ll provide these to you in kit form even. Steeper learning curve (but you learn a lot that way) in trade for lower budget. This is what started it all. Legacy MegaSquirt EFI Systems – Assembled MegaSquirt DIY Kits |
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Does Made in the USA matter to you?
I hope so because it does to us!! We fight HARD to keep our products made right here in USA, which the vast majority of our ECU and Wire Harness manufacturing done in-house in our Gainesville, GA facility. We have over 20 families supported by this American-Made Company, and growing. When we do have to farm something out, we look local, using contract manufacturers generally within a short drive of our HQ.
We hope Made in the USA matters to you to. And yes, we gladly ship all over the planet, every single day. We love our customers no matter where they call home!
