MegaSquirt Engine Management & Fuel Injection by DIYAutoTune.com

Lifetime Warranty on Every MS3Pro Ultimate & EVO Purchase

Lifetime Warranty. Lifetime Support. Lifetime Confidence. Standard Features for MS3Pro!

Learn More

Check Out the MS3Pro EVO Engine Management System

Let our experts configure your complete system today!

Learn More

MS3Pro Plug & Play for Chevy LSX

Available now for MS3Pro Ultimate & EVO, just choose your injector connectors and get to tuning!

View Products

Get your MS3Pro Apparel Here

Flex your MS3Pro colors! Cotton T’s, curved or flat brim FlexFit hats!

Shop Apparel & Merchandise

4L60E & 4L80E Plug & Play Transmission Control

The versatile MicroSquirt can control 4L60E & 4L80E transmissions with just a few clicks! No wiring necessary.

Shop MicroSquirt Transmission Control

Shop by Category View All

Featured Products View All

Innovate LC-2 Digital Wideband Controller with Sensor – 3877
~~$189.00~~ $166.00
The evolution of the world’s most popular stand alone digital O² sensor controller, the Innovate Motorsports LC-2 builds upon the legacy of the LC-1 by adding simplicity and leading edge technology. The LC-2 utilizes the only 100% digital wideband air/...
Add to cart
8′ MegaSquirt Wiring Harness (MS1/MS2/MS3 Ready)
5 out of 5
$83.00
MegaSquirt Wiring Harness - 8 Feet LongWe've completely redesigned our wire harness to help you get your fuel injection installation right the first time with several new features to help make your installation as easy and reliable as possible:...
Add to cart
USB to Serial Adapter -TunerStudio
4.6153846153846 out of 5
$22.49
This USB to Serial Adapter has been tested and works properly with all versions of TunerStudio. We highly recommend this adapter is used if your tuning PC/laptop doesn't have a DB9 Serial connector. Or you can use another adapter with a genuine FTDI c...
Add to cart
MS3X MegaSquirt 3 with Expansion
5 out of 5
From: $762.00
MS3X MegaSquirt 3 with expansion arrives equipped with features surpassing MS2 & MS1 systems, like sequential fuel & spark, 2 step, progressive nitrous, boost control, onboard traction control & much more! MS3X paved the way for the powerfu...
Add to cart
MS2 Extra MegaSquirt 2 EMS Stand alone
4.6666666666667 out of 5
From: $515.00
MS2 Extra MegaSquirt 2 EMS stand alone engine management system assembled with the latest surface mount PCB3.57 in an anodized black case - Assembled Unit Part # MS2357-CMegaSquirt has been installed on thousands of engines from purpose built race-car...
Add to cart
Electronic Boost Control Solenoid Kit
5 out of 5
$58.00
This electronic boost control solenoid can be used with the MS3-Pro/MSPNP as well as any DIY Style MegaSquirt EMS (with the appropriate mods), or with other electronic boost controllers to control boost by adjusting the pressure to a turbo wastegate. Th...
Add to cart
Innovate MTX-L Plus Gauge – Sensor – Controller – 3918
~~$219.00~~ $209.00
Innovate Motorsports' New MTX-L PLUS wideband gauge features their patented DirectDigital™ technology and all-new Advanced Sensor Control which receives feedback from the sensor more frequently and optimizes heater control. The combination of these te...
Add to cart
IGN1A Smart Coil
5 out of 5
From: $71.00
The IGN1A Smart Coil by AMP EFI requires no CDI Ignition Module to produce 103 mJ per spark, with a longer spark duration (2.9 ms) than what you'd see with a capacitive discharge. They are the same monster coils used in Street Outlaws No Prep Kings conten...
Add to cart
MS3Pro EVO GM LS 24x Plug and Play
5 out of 5
From: $1,749.00
MS3Pro EVO GM LS 24x Plug and Play includes an MS3Pro EVO ECU, TunerStudio software and the most rugged & durable GM 24X custom harness in the aftermarket. Experience the MS3Pro EVO.MS3Pro EVO is an evolution, not a revolution- a scaled u...
Select options
MS3Pro Ultimate Standalone Engine Management System
5 out of 5
$1,499.00
Experience the MS3Pro ULTIMATE by AMP EFI, featured in Street Outlaws No Prep Kings contestant, The Hulk.Developed from the MS3Pro 1st Gen platform, the MS3Pro ULTIMATE brings NEXT LEVEL capability to MS3Pro's staggering feature set beginning with a...
Add to cart
MS3Pro EVO Standalone Engine Management System
$1,249.00
Introducing MS3Pro EVO. (supersedes 1st Gen MS3Pro)MS3Pro EVO is an evolution, not a revolution- a scaled up, more capable MS3Pro due to shared technology with big brother, MS3Pro Ultimate. MS3Pro EVO does not have peak and hold injector drivers, b...
Add to cart
MicroSquirt with 8′ Harness
5 out of 5
$388.00
The versatile MicroSquirt with 8' Harness: Standalone Engine Management System, Transmission Controller or CAN I/O Expansion Module- Version 3.0MicroSquirt with 8' Harness is an entry-level, fully assembled ECU and universal 30" pigtail with varied a...
Add to cart