Description
Product Overview
The Painless fuel injection wiring kit is a premium EFI harness crafted from high‑strand copper TXL wire and painted copper exterior. Measuring 14.5 x 10.25 x 5.25 inches and weighing 7.54 lb, it includes machine‑crimped terminals that match original equipment specifications. Designed for easy installation, the harness features OEM‑fit connectors, grouped harness breakouts, and a powder‑coated diagnostic bracket for seamless integration with any performance engine.
Usage
This harness is perfect for street‑tuned vehicles, track cars, and off‑road builds where reliable fuel delivery is critical. Install it in any gasoline engine equipped with electronic fuel injection, from daily commuters to high‑performance race cars. The robust copper construction tolerates heat, vibration, and abrasion, making it suitable for harsh environments and demanding driving conditions.

Why Choose Us
Painless manufactures every harness in Fort Worth, TX, ensuring strict quality control and American‑made craftsmanship. Each unit is bench‑tested for correct pin‑out and secure connections, eliminating the need for re‑work. Our dedicated technical support team provides installation assistance, guaranteeing a trouble‑free experience for both professionals and DIY enthusiasts.
Key Features
- High‑strand TXL copper wire for superior conductivity and durability
- OEM‑fit connectors and machine‑crimped terminals for exact factory match
- Painted copper exterior resists corrosion and abrasion
- Integrated diagnostic port and check‑engine‑light bracket for easy troubleshooting
- American‑made with comprehensive testing and lifetime technical support
FAQ
Is this harness compatible with my vehicle?
The harness is designed to fit a wide range of EFI systems. Verify the connector types and pin‑out against your vehicle’s service manual to ensure compatibility.
What is TXL wire and why is it better?
TXL wire is a high‑strand copper conductor with premium insulation, offering lower resistance, higher flexibility, and greater resistance to abrasion compared to standard primary wires.
Do I need additional tools for installation?
Standard hand tools such as screwdrivers, pliers, and a torque wrench are sufficient. The harness includes a powder‑coated bracket for the diagnostic port, simplifying the process.
Can I use this harness for racing applications?
Yes. The copper construction and secure crimped connections are engineered to withstand the high‑temperature and vibration environments typical of racing.
What warranty does Painless offer?
Painless provides a limited warranty covering defects in materials and workmanship, along with lifetime technical support for installation queries.





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