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Ignitions and Electrical› Computers, Chips, Modules and Programmers

MegaSquirt

ECU V3.57

$599.99 $514.99 Save $85.00

SKU: MS2357-C

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

Professional / shop required

Overview

The MegaSquirt 2 ECU with v3.57 surface-mount PCB is a fully assembled, budget-friendly engine management solution designed for turbocharged, supercharged, and naturally aspirated builds. This system, running the MS2/Extra firmware, offers advanced features for tuners and racers, including coil-on-plug ignition, boost control, and staged injection. Core capabilities include support for Speed Density, Alpha-N, or blended load types, an onboard 21 psi MAP sensor (upgradeable to 44 psi), and 1μs fuel control resolution.
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The MegaSquirt 2 ECU V3.57 is a fully assembled engine management solution by DIYAutoTune, built with a v3.57 surface-mount PCB for enhanced reliability. Equipped with the MS2/Extra firmware, the MegaSquirt 2 ECU offers advanced capabilities tailored for tuners and racers. It supports sophisticated ignition options like coil-on-plug and wasted spark, as well as features such as boost control, 2-stage nitrous injection, and launch control. The ECU utilizes 16x16 VE tables and 12x12 spark tables for precise tuning. Core functionalities include support for Speed Density, Alpha-N, or blended load types, closed-loop fuel and idle control, and both narrowband and wideband O2 sensor compatibility. Key hardware specifications include an onboard MAP sensor capable of reading up to 21 psi, with an upgradeable option to 44 psi. The fuel control resolution is 1μs, a significant improvement over previous versions. Data logging is supported via an SD card (not included), and the unit features a professionally machined brushed aluminum case with DB37 and DB15 connectors. Expandability is provided through CANBus support for I/O Extenders or GPIO boards. The ECU is tunable using the free TunerStudio MS software.

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

BrandMegaSquirt
Part NumberMS2357-C
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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