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Ignitions and Electrical› Computers, Chips, Modules and Programmers

Amp EFI

MS3Pro Mini Standalone ECU

$690.00 $674.99 Save $15.01

SKU: MS3ProMini-8-PKG

In Stock
In Stock
Ships by Sep 12
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
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Overview

The AMP EFI MS3Pro Mini is a compact, wire-in standalone ECU designed for engines with up to eight cylinders. It features eight saturated injector outputs and four logic-level spark outputs, alongside an onboard 4-bar MAP sensor and barometric pressure sensor. This ECU also includes onboard SD card datalogging.
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The AMP EFI MS3Pro Mini is a compact, palm-sized, wire-in standalone engine management system built for performance projects where space is limited but precise control is critical. It delivers the core MS3Pro feature set, including eight saturated (high-impedance) injector outputs and four logic-level spark outputs. The unit comes with a built-in 4-bar MAP sensor and a 1-bar barometric pressure sensor, as well as onboard SD card data logging for easy validation and diagnosis. It can handle sequential fuel and ignition on engines up to four cylinders, sequential fuel with wasted spark on six or eight-cylinder engines, or power a 2-rotor Wankel with separate leading and trailing ignition outputs. It is compatible with common platforms such as Honda B-, K-, and F-series, Mazda B6 and BP series, Mazda MZR / Ford Duratec, Toyota 1JZ/2JZ, and BMW M20/30/50 engines. The MS3Pro Mini requires MS Firmware v1.6.0 or later and TunerStudio v3.2.0 or later for operation. The purchase includes a TunerStudio registration code. Available packages include the ECU with an 8ft Flying Lead Harness, USB FTDI Serial USB Adapter, M8 Tuning Cable, and TunerStudio Registration Code, or the ECU Only, which includes only the controller and registration code.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandAmp EFI
Part NumberMS3ProMini-8-PKG
CategoryIgnitions and Electrical

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Returns & Fitment

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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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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