Pre-Ignition x4 — Slim Standalone Engine Management Kit (Short Backorder)

$189.99

Back-Order Notice (Estimated shipping time: 3–4 weeks as of January 19, 2025)

A few items were out of stock longer than expected due to component availability issues. Those supply issues have now been resolved, and a large restock order has been placed for multiple products.

Since arrival is now confirmed, pre-orders are open for the affected items. Once inventory arrives, orders will ship within 1–3 business days.

Please note: Only new orders placed on items displaying this notice are affected by the back-order. All previous orders have already shipped.

Thank you for your patience!

Pre-Ignition X4 is a compact, affordable, and fully Speeduino-compatible standalone ECU.

Included:

  • Pre-Ignition X4 ECU (assembled as pictured)

  • Harness-side connectors and pins

  • Arduino 2560 (clone) pre-installed with latest Speeduino firmware

Back-Order Notice (Estimated shipping time: 3–4 weeks as of January 19, 2025)

A few items were out of stock longer than expected due to component availability issues. Those supply issues have now been resolved, and a large restock order has been placed for multiple products.

Since arrival is now confirmed, pre-orders are open for the affected items. Once inventory arrives, orders will ship within 1–3 business days.

Please note: Only new orders placed on items displaying this notice are affected by the back-order. All previous orders have already shipped.

Thank you for your patience!

Pre-Ignition X4 is a compact, affordable, and fully Speeduino-compatible standalone ECU.

Included:

  • Pre-Ignition X4 ECU (assembled as pictured)

  • Harness-side connectors and pins

  • Arduino 2560 (clone) pre-installed with latest Speeduino firmware

Hardware Feature List:

  • Supports up to 8 cylinders for both fuel and ignition, using 4 fuel channels and 4 ignition channels. Full sequential fuel and ignition for 2 (even fire only), 3, and 4-cylinder engines. Wasted spark and semi-sequential operation for 6 (even fire only) and 8-cylinder engines.

  • 4 x Fuel Injector Outputs

  • 4 x Ignition Outputs (Selectable voltage: 12V or 5V)

  • 4 x Pre-configured analog input channels (CLT, IAT, TPS, O2 sensors)

  • 2 x Customizable spare analog inputs (e.g., oil pressure, fuel pressure)

  • 2 x Trigger inputs (Crankshaft and Camshaft position sensors)

  • 3 x Customizable spare digital inputs (default: Flex Fuel, Vehicle Speed Sensor, Clutch switch)

  • Dual VR conditioner mount (VR conditioner not included)

  • 4-bar MAP sensor (up to 43 PSI boost)

  • Barometric pressure sensor (real-time atmospheric compensation)

  • DRV8825 mount (for stepper idle valve support)

  • 9 x Digital Outputs (4 x 2A max | 5 x 400mA max)

  • Dedicated tachometer output

  • 2 x Serial headers (Serial0 & Serial3), ideal for Bluetooth or WiFi modules

Open Source and Customizable:

Full control with open-source hardware and firmware.

Affordable and Reliable:

Serious performance without the high price tag.

Backed by a Big Community:

Lots of guides, support, and real-world experience available.

Tested Before Shipping:

Every ECU is tested to ensure top quality and reliability.