Description
Overview
The AWE Tuning Engine Wiring Harness is a purpose-built electrical harness designed to integrate cleanly with the factory setup on Audi, BMW, Mercedes-Benz, Porsche and other applications. As a dedicated engine harness, it plugs directly into your existing wiring so you can address exhaust valve removal without triggering a stored code in the ECU. If you’ve eliminated your exhaust valves, this is the automotive wiring harness solution that keeps your electrical system happy.
When valves are eliminated, the ECU stores what is known as a ‘soft code’ in the system, which may not appear on the dash. While this code is not harmful, who wants it? Enter the AWE Electronic Valve Simulators. These simple devices plug right into the factory harness in place of the exhaust valves and prevent any code from ever being stored in the ECU due to the removal of the exhaust valves. Plug them in. Start it up. Drive away. That simple. They come as a set of two.
Key Benefits
Unlike a complex custom car wiring harness build, this kit is engineered for a true plug-and-play experience. There’s no tune required and no drama — the wire harness seats into the OEM connectors exactly where the exhaust valves once lived. Because it works with your factory car wiring harness, installation is straightforward and repeatable, making it an easy upgrade for anyone comfortable working around their auto electrical wiring harness.
AWE Tuning backs this electrical wiring harness with a Fit Guarantee and a No CEL Guarantee, so you can install with confidence that your check engine light stays off. It also carries a Voluntary Label noting 50 State Legal status, and all necessary hardware is included in the box.
Highlights
- Plug-and-play engine harness that installs in place of the factory exhaust valves
- Prevents the ECU from storing a soft code after valve removal — No CEL Guarantee included
- No tune required: plug them in, start it up, drive away
- Fit Guarantee for confident, correct installation
- Includes all necessary hardware and comes as a set of two
- Voluntary Label: 50 State Legal
Fitment
This engine wiring harness is designed for Audi, BMW, Mercedes-Benz, Porsche and additional applications. Always confirm your specific vehicle before ordering to ensure the correct fit. Constructed with durable plastic housings, the harness wire connections are built to slot into your factory harness for a clean, factory-style result.
Whether you’re refining a daily driver or dialing in a performance build, this wiring harness kit takes the guesswork out of exhaust valve deletes. As part of a well-planned wire and harness strategy, it delivers a tidy, code-free installation that respects your OEM electrical system while letting your exhaust do exactly what you intended.
