EV6 Harness to EV1 Injector Adapter Harness — Manufacturer part number: 31-1031.

EV6 Harness to EV1 Injector Adapter Harness. Allows the use of EV1 injector on a EV6 vehicle or engine harness.

Features include:

• Factory harness plug in
  
• Converts an EV6 (LS2/3) harness into an EV1 (LS1) Injector
  
• Sold Individually

(Warning) This is a RACE ONLY product manufactured and sold for installation on vehicles to be used solely for competition purposes. Once this part is installed, the vehicle may never be used, or registered or licensed for use, on a public road or highway. If you install this part on your vehicle and use the vehicle on a public road or highway, you will violate the Clean Air Act 203(a)(3), 42 U.S.C, 7522(a)(3) and may be subject to personal civil or criminal liability.

Fitment and ordering

Confirm the vehicle, engine, dimensions and application restrictions listed above before ordering. Speed Engineering parts are designed to work with Speed Engineering components; mixing brands may require modifications.

Manufacturer specifications and availability checked October 4, 2026. Availability refers to the manufacturer and can change; it does not indicate stock held at Speedzone.