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. Whether you're tackling a drag strip, autocross, or weekend cruiser, MS2 gives you the tools to dial in your engine’s performance. With the MS2/Extra firmware pre-loaded, this system supports a wide array of advanced features for serious tuners and racers — including coil-on-plug ignition, boost control, staged injection, nitrous, and much more. Core Capabilities: Supports Speed Density, Alpha-N, or blended load types Onboard 21 psi MAP sensor (upgradeable to 44 psi) Fuel control with 1μs resolution (100x finer than MS1) USB communications + SD card data logging (SD card not included) Closed-loop fuel and idle control Narrowband & wideband O2 support Configurable barometric correction and rev limiter Tunable with free TunerStudio MS software (upgradeable to full version) Advanced MS2/Extra Firmware Features: 16x16 VE tables and 12x12 spark tables 2-stage nitrous control, boost control, water injection Launch control, table switching, and shift light output Native support for OEM trigger wheels Coil-on-plug and wasted spark ignition options PWM or stepper idle valve control (PWM now natively supported via v3.57 board) Knock sensing and AFR targets Hardware Highlights: Professionally machined brushed aluminum case with endplates Surface-mount v3.57 PCB for higher reliability and build quality DB37 and DB15 connectors included (female, with hardware) CANBus support for expandability with I/O Extenders or GPIO boards
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