If you’ve tried to getyour tach to function after anLS swap, you know that it isn’t always a simple procedure. Save time, frustration and don't make a single cut in your factory wiring with Auto Meter’s Plug and Play LS Tach Harness.This Plug and Play solution let's you quickly and easily install the Auto Meter 9117 Tach Adapter onto your LS-derived engine. OEM spec connectors and wiring assure ahassle free installation that takes minutes rather than hours.

No splicing, cutting or risks of voiding you automobile's warranty. It’s completely reversibleand couldn’t be easier. Getthe best possible results in the least amount of time with the solution guaranteed to work right, the first time.