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Ignitions and Electrical› Computers, Chips, Modules and Programmers

Megasquirt

MS3 Gold Box Engine Management System

$1,200.00 $680.00 Save $520.00

SKU: MS3-GOLD-BOX

In Stock
In Stock
Ships by Jul 29
Free Shipping
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Advanced — 4+ hours

Description

The Megasquirt MS3 Gold Box is a universal engine management system designed for enthusiasts seeking advanced control. It features USB, RS232, and CAN communication, along with an 8-foot flying lead harness. This system includes onboard SD card data logging and utilizes Tuner Studio for tuning.

Capable of self-tuning and supporting VE-based, Speed Density, Alpha-N, and MAF-based tuning, it offers individual cylinder fuel and spark trim tables. The MS3 Gold Box provides 10 high-impedance injector drivers and 10 logic-level ignition outputs, alongside outputs for fuel pump, fan, and idle air control.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandMegasquirt
Part NumberMS3-GOLD-BOX
CategoryIgnitions and Electrical

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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