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DIYAutoTune

DIYAutoTune (part of EFI Innovations; sister brand AMP Engine Management, formerly AMP EFI); distributes Bowling & Grippo MegaSquirt
Founded 2004 (DIYAutoTune, late 2004); AMP Engine Management 2015; MegaSquirt launched 2001Gainesville, Georgia, USAFounders: MegaSquirt designed by Bruce Bowling and Al Grippo; DIYAutoTune founders not published

DIYAutoTune is a Gainesville, Georgia, retailer and maker of DIY engine management, best known for selling and supporting the Bowling & Grippo MegaSquirt family plus its own AMP EFI/AMP Engine Management, Digital Dash EFI and MaxSpark brands. MegaSquirt and AMP ECUs are tuned with EFI Analytics' TunerStudio MS.

See 4 DIYAutoTune / AMP EFI ECUs ↓Find a MegaSquirt tunerWebsite ↗Software downloads ↗Contact page ↗

History

  1. 2000EFI332 predecessor project by Bowling and Grippo released about 200 kits (Wikipedia)
  2. 2001MegaSquirt (MS1) launched 15 Sep 2001 (Wikipedia)
  3. 2004DIYAutoTune founded (late 2004)
  4. 2005MegaSquirt II released (Wikipedia)
  5. 2007MicroSquirt released (Wikipedia)
  6. 2010MegaSquirt III released (Wikipedia)
  7. 2012MS3Pro released (updated 2017) (Wikipedia)
  8. 2015AMP Engine Management (AMP EFI) founded in Gainesville, GA

Contact

Address
2405 Murphy Blvd, Gainesville, GA 30504, USA
Phone
678-261-8789
Email
Not published
Website
diyautotune.com
Contact
Contact page ↗

Tuning software

Current
TunerStudio MS 3.3.01 (EFI Analytics) with MegaLogViewer 4.6.14
Cost
TunerStudio MS Lite is free; a paid Registered edition unlocks extra features (same installer). Price not captured.
Download
Official download page ↗
Old versions
No public archive found
Licence
MegaSquirt hardware designs and firmware are copyrighted by Bowling & Grippo and patent-protected; firmware source can be downloaded but is licensed only for use on official MegaSquirt hardware (Wikipedia). Not open source in the GPL sense.

Software history

  1. 2016TunerStudio MS 2.9.x · Earliest entries on current changelog page (May 2016)
  2. 2024TunerStudio MS 3.2.x · 3.2.00 (Feb 2024) to 3.2.05 (Nov 2024)
  3. 2025TunerStudio MS 3.3.00 · Released to Stable 2 Sep 2025; downloads page now offers 3.3.01

Links go to the maker's own download pages. Installers are not hosted here.

DIYAutoTune / AMP EFI ECUs

4 current. Cheapest first.

Pixel illustration of the DIYAutoTune MicroSquirt V3.0
DIYAutoTune
EntryWire-in

MicroSquirt V3.0

US$325
2INJ
2IGN
0DBW
0λ WB
8MAX CYL
0KNOCK
1CAN
PCLOG
FlexTractionLaunchBoostGearboxEthernet
Pixel illustration of the DIYAutoTune MS3Pro Mini
DIYAutoTune
EntryWire-in

MS3Pro Mini

US$675
8INJ
4IGN
0DBW
0λ WB
8MAX CYL
–KNOCK
1CAN
✓LOG
FlexTractionLaunchBoostGearboxEthernet
Pixel illustration of the DIYAutoTune MS3Pro Ultimate
DIYAutoTune
MidWire-in

MS3Pro Ultimate

US$1,499
12INJ
8IGN
0DBW
0λ WB
12MAX CYL
2KNOCK
1CAN
✓LOG
FlexTractionLaunchBoostGearboxEthernet
Sources for this page

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