ENGINE ECM HARNESSES
PRECISION WIRING, TAILORED POWER: CRAFTED FOR YOUR DRIVE
A custom engine harness offers various advantages, tailoring its electrical system to specific performance modifications. This can enhance horsepower, torque, and overall engine efficiency. It ensures seamless integration with aftermarket components like new sensors, engine management systems, and ITB's. Custom harnesses reduce weight and potential points of failure by removing unnecessary connections.
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Emtron Engine Management seamlessly integrates with Rasant ITB's, combining cutting-edge tuning capabilities with optimal air intake for a driving experience beyond compare. This collaboration ensures perfection in fuel and ignition control, as well as unique airflow management for individual cylinders, unlocking the full potential of high-performance engines. Additionally, the Emtron ECM offers complete customization and real-time data monitoring for all your engine parameters.

The system's real-time adaptability ensures optimal performance under varying driving conditions. The synergy between ITB's and Emtron engine management aims to deliver increased horsepower, torque, and improved throttle response.

WHY RASANT HARNESSES?
PLUG-AND-PLAY​
Rasant harnesses are designed, engineered, and manufactured with integration in mind. Our harnesses are specifically produced to be a plug-and-play solution for the Emtron ECU suite while retaining all the OEM plugs for the engine side. From the OEM Porsche charging plugs to our secondary starter/tach and charging looms, our solution is meant for ease of installation and use.

QUALITY​
Rasant harnesses are proudly manufactured in the United States, ensuring any potential issues are quickly resolved with direct, personal support—no automated phone trees. We use only OE or motorsport-grade connectors and Tefzel wiring, known for its lightweight, durable, and heat-resistant properties. Our goal is to deliver the highest-quality harnesses to meet the demands of your Porsche build.

100% PROTECTED​
Rasant harnesses are built for unmatched durability and reliability. Every primary Deutsch connector is fully sealed and covered to prevent wiring or pin-out issues. Our harnesses feature strain-relief boots, which provide:
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Weather Resistance – Shields against moisture, dust, and debris.
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Strain Relief – Reduces stress on wiring to prevent failures from vibration or movement.
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Heat & Chemical Protection – Withstands engine bay heat, fuel, and other contaminants.
No compromises—just maximum protection for long-term performance.

SECONDARY HARNESSES
For ease of installation, all Porsche 911 Air-Cooled Custom Harnesses are supplied with three (x3) sub-harnesses. The sub-harnesses are dedicated harnesses for ignition/tachometer, alternator/charging system utilizing OE plugs, fuel pump, and not pictured, but the starter to Bussmann sub-harness.

Ignition / Tachometer

Alternator / Charging with OE Plugs

Fuel Pump

CUSTOM APPLICATIONS
All engine harnesses are custom-made to order. To create your specific harness, we need to know your vehicle year, whether it's single plug or twin plug, variocam or non-variocam, and details about the ECM you're using. This ensures that all plugs are positioned correctly, have the appropriate length, and are pinned accurately for your specific ECM.
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In our pursuit of delivering the highest quality products and services, we provide a white-glove concierge build service. What does this mean? We engage in detailed discussions with you regarding all the options, components, and goals you have, ensuring that we tailor the perfect kit specifically for you.
So are you ready to order your kit? Click the button below!