STOP cutting your expensive OEM Factory Engine Wiring Harness! Be smart and instead use an ECU patch harness, hand-built in the USA specific to your car.
Then you can wire all your aftermarket electronics to the patch harness, and easily plug it in between the ECU and factory wiring harness.
All Autosport Wiring Patch harnesses use the Original Equipment Manufacture (OEM) connectors, plugs and contacts to allow it to plug easily into place. With this harness, late model cars can now have electronic mods wired safely and easily into it at a workbench, without having to cut into and possibly damage the factory wiring harness.
No more standing on your head to do under-dash wiring mods!