4 Pin Black Flat
These O2 extension harness are for the cars that need to move their O2 sensors back when running long tube headers.
The terminals are factory style crimped and soldered and loom installed to help protect the wires.
This harness uses the black flat 4-pin style connectors.
O2 harness: let me know the length needed:
$30.00 Shipped in the United States
Canada and Overseas orders extra shipping charges will be charged.
4 Pin Black Square
These O2 extension harness are for the cars that need to move their O2 sensors back when running long tube headers.
The terminals are factory style crimped and soldered and loom installed to help protect the wires.
This harness uses the black square 4-pin style connectors.
O2 harness: let me know the length needed:
$30.00 Shipped in the United States
Canada and Overseas orders extra shipping charges will be charged.
4 pin Black Triangle

O2
These O2 extension harness are for the cars that need to move their O2 sensors back when running long tube headers.
The terminals are factory style crimped and soldered and loom installed to help protect the wires.
This harness uses the black triangle 4-pin style connectors.
O2 harness: let me know the length needed:
$30.00 Shipped in the United States
Canada and Overseas orders extra shipping charges will be charged.
4 Pin Grey Square
These O2 extension harness are for the cars that need to move their O2 sensors back when running long tube headers.
The terminals are factory style crimped and soldered and loom installed to help protect the wires.
This harness uses the grey square 4-pin style connectors.
O2 harness: let me know the length needed:
$30.00 Shipped in the United States
Canada and Overseas orders extra shipping charges will be charged.