Rewiring no longer has to be a headache-inducing process thanks to Painless Performance. Whether you’re working on an LS engine swap or converting to electronic fuel injection, Painless EFI wiring harnesses make the switch easier. They can also replace any corroded or broken wiring.

All Painless EFI wiring harnesses include:

• TXL high-grade wiring
• Factory style computer connectors
• Dedicated fuse box and fuel pump relay
• OBD II plug and check engine light

Painless tests every EFI wiring harness to make sure all the wires are pinned correctly. Each wire comes labeled, so there’s no guessing what wire goes where. The harnesses come with everything needed to complete the installation. Along with EFI wiring components, Painless also offers complete chassis wiring harnesses.