BMW E30 M3 MoTeC Engine Harness

from $3,249.00

Bring modern engine management, reliability, and motorsport level control to one of BMW’s most iconic chassis.

This complete BMW E30 M3 electronics package is built around the MoTeC M130 ECU and designed as a drop in management solution for the factory 2.3L S14 platform. Developed for owners who want to modernize their M3 without compromising the character of the car, this package replaces aging factory electronics with a clean, motorsport grade wiring solution.

At the center of the package is a custom engine harness engineered for accuracy, reliability, and simplicity. Paired with the precision of the M130, this setup unlocks modern tuning capabilities for upgraded cam and crank trigger conversion, expanded sensor integration, coil on plug ignition, and sequential fuel control.

The result is a cleaner, more capable, and more dependable electronics package built for serious street cars, track cars, and full motorsport applications.

Full Package Includes

  • MoTeC M130

  • MoTeC USA Drag Firmware

  • MoTeC LTC

  • Motorsport Grade M130 to S14 Engine Harness

    • Concentrically twisted tefzel wire with Raychem DR25 and heat molded boots.

    • Plug and play fitment with no permanent modifications

    • Retains all stock functionality

Sensors, Trigger kits, Coil-On-Plug setups, Injectors, etc. available at additional cost upon request

Harness Connections

  • Cam Sensor

  • Crank Sensor

  • 4x Injectors

  • 4x Coil Packs

  • Coolant Temp (ECU and Gauge Cluster)

  • Oil Temp (Gauge Cluster)

  • Oil Pressure

  • Fuel Pressure

  • Manifold Pressure

  • Intake Air Temp

  • Alternator

  • Starter Solenoid

  • Throttle Position

  • Idle Air Solenoid

  • Knock Sensor

  • Evap Solenoid

  • Chassis Interface C101

  • CAN

  • Spare I/O

  • Panel Mount Ethernet Port

Choose:

Bring modern engine management, reliability, and motorsport level control to one of BMW’s most iconic chassis.

This complete BMW E30 M3 electronics package is built around the MoTeC M130 ECU and designed as a drop in management solution for the factory 2.3L S14 platform. Developed for owners who want to modernize their M3 without compromising the character of the car, this package replaces aging factory electronics with a clean, motorsport grade wiring solution.

At the center of the package is a custom engine harness engineered for accuracy, reliability, and simplicity. Paired with the precision of the M130, this setup unlocks modern tuning capabilities for upgraded cam and crank trigger conversion, expanded sensor integration, coil on plug ignition, and sequential fuel control.

The result is a cleaner, more capable, and more dependable electronics package built for serious street cars, track cars, and full motorsport applications.

Full Package Includes

  • MoTeC M130

  • MoTeC USA Drag Firmware

  • MoTeC LTC

  • Motorsport Grade M130 to S14 Engine Harness

    • Concentrically twisted tefzel wire with Raychem DR25 and heat molded boots.

    • Plug and play fitment with no permanent modifications

    • Retains all stock functionality

Sensors, Trigger kits, Coil-On-Plug setups, Injectors, etc. available at additional cost upon request

Harness Connections

  • Cam Sensor

  • Crank Sensor

  • 4x Injectors

  • 4x Coil Packs

  • Coolant Temp (ECU and Gauge Cluster)

  • Oil Temp (Gauge Cluster)

  • Oil Pressure

  • Fuel Pressure

  • Manifold Pressure

  • Intake Air Temp

  • Alternator

  • Starter Solenoid

  • Throttle Position

  • Idle Air Solenoid

  • Knock Sensor

  • Evap Solenoid

  • Chassis Interface C101

  • CAN

  • Spare I/O

  • Panel Mount Ethernet Port