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MSD Digital Window Switch (96-14 All)

Item 525001
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      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation


      • Perfect for Nitrous System Control
      • Programmable from 200 Rpm to 15,000 Rpm in 100 Rpm Increments
      • Accepts Different Inputs Signals
      • Can Be Used with an Input Voltage of 9 to 18 Volts
      • Fits All 1996 to 2014 Mustangs


      Perfect For Nitrous Systems. A MSD Digital RPM Window Switch will give you more control of your Mustang's nitrous system to ensure it is activating at the correct preset RPMs. While optional, a Digital RPM Window Switch should be standard on all nitrous installations for safe operation.

      Programmable. The MSD Digital RPM Window Switch's activation points or "windows" are easily programmed by simply scrolling through the LED display to your desired rpm amounts. It can be programmed from 200 rpm to 15,000 rpm in 100 rpm increments with no rpm module required.

      Inputs Signals. The MSD Digital RPM Window Switch is designed to accept an input rpm signal from a coil negative terminal (for stock ignitions), a tach output from an ignition control, an ECU tach output or even a 5 volt tach signal, making it one of the most versatile Digital RPM Window Switches available.

      Application. The MSD Digital RPM Window Switch is designed to be compatible with all 1996-2014 Ford Mustangs, including the V6, GT, Bullitt, Mach 1, SVT Cobra, BOSS and Shelby GT500 models.

      Fitment: 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 Details

      MPN# 8969

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (10)

      Write a Review

      Ratings Summary

      5.0 out of 5 overall rating from 10 customers

      Installation Time: Less than 1 Hour

      • March 28, 2019

        5 2005 GT - DanielO Installation Time: Afternoon

        Why press a trigger

        Takes out all the guess work ,on when to hit your NOS....window switch is also a safety device....only applys Nos at WOT

        Helpful (0)
      • August 24, 2017

        5 2014 GT - 14DIB Installation Time: Less than 1 Hour

        Excellent Digital Window Switch

        Easy to install with adjustability across RPM bands. Works as designed to control the actuation of NO2 within the specified RPM.

        Helpful (7)
      • July 31, 2017

        5 2004 GT - ScottA Installation Time: Less than 1 Hour


        Easy install, works as advertised. A must have if your doing nitrous.

        Helpful (7)
      • June 19, 2017

        5 2006 V6 - Ethan

        Window Switch

        I bought this as an added safety precaution, Have it mounted on passenger dash. I love it, it works well, and is definetly worth having. Thanx again AM.

        Helpful (8)
      • April 17, 2017

        5 2012 GT - Bowman Installation Time: Afternoon

        As Advertised

        This MSD Digital Window Switch works exactly as advertised. It can be a little tricky to install so label your wires to avoid possible confusion.

        Helpful (8)
      • February 27, 2015

        5 2010 GT - hockeygod1225 Installation Time: Less than 1 Hour

        Must have with nitrous

        This is a must have when running nitrous to keep your motor safe at low rpms.

        Helpful (9)
      • January 17, 2015

        5 2002 GT - Osmosis Installation Time: Less than 1 Hour

        MSD Switch

        I was manually flipping on and arming the nitrous system at 3k. I have an automatic GT with 3:73 gears and I know, I was not always consistant. I knew I could remove the variable of hitting the nitrous arming switch late by buying the MSD unit. My first run I went from a Xx.77 to a Xx.61. Definitely purchase!!

        Helpful (8)
      • May 24, 2014

        5 2014 GT - Matt23 Installation Time: Less than 1 Hour

        MSD Digital Window Switch

        Window switch works great! I installed it on my 2014 mustang gt with no problems. The only downside to this window switch is it's kinda big, but overall I'm very happy with it and I recommend it to anyone who wants to be extra safe while using a nitrous system in there mustang! The digital screen is a plus!

        Helpful (8)
      • March 31, 2014

        5 2003 Mach 1 - Juan14 Installation Time: Less than 1 Hour


        I was a little worried it wasn't gona work good cause off all the people saying wouldnt read rmps right an activate to soon or to late an stuff. But wow easy install I even hooked up rpm cable to one of the negative cables on the my 2-step an reads an works fine. Good product I would buy again an even my friend is thinking of buying one. I recommend this product.

        Helpful (8)
      • February 09, 2014

        5 2003 Mach 1 - LarryBird Installation Time: Less than 1 Hour

        A must have for Nitrous

        The MSD window switch easily allows you to turn your spray on and off at the touch of a button. I have my MSD Window switch controlling ground on my arming system and set to provide ground from 2500-6500 RPM. Easy to install, easy to set and change preferences. American Muscle sells this part 5 - 10 dollars cheaper than anywhere else!

        Helpful (9)

      Questions & Answers (5 answers)

      5 Top Rated Questions

      1, on a 12 gt where does the signal wire hook up to the car ? 2. What is the life expectancy of this unit being on most of the time ? Chuck

      • When installing the MSD Digital Window Switch on a distributorless ignition, such as that found on your 2012 GT, you will require a tach adaptor to get a valid RPM signal, such as the one linked below:

      Helpful (1)

      in a 2009 Automatico GT Stang with a stock ingnitios system, where I could get the rpm signal for this Wndow switch ?... Should I get another divice like I tach adapter in ordert to the switc works ? Thanks

      Am I able to run this msd window switch along with a msd 2 step that I have?

      • You can run both together yes.

      Helpful (0)

      Will this work with a N2MB wot box?

      • Unfortunately, we have not confirmed the use of this MSD Digital Window Switch with an N2MB Wide-Open-Throttle Box.

      Helpful (0)

      Can this be set up to start spraying in a selected gear? i've seen some window switches have the ability to start spraying in a selected gear, does this window switch have that ability?

      • The MSD Digital Window Switch will only control the Nitrous in the RPM range across all of your gears at your desired throttle position.

      Helpful (0)
      Post Your Question

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Nitrous Window Switch Module

      Tech Specs

      Will It Fit My Mustang

      • Boss 302 - 12, 13
      • Bullitt - 01, 08, 09
      • Cobra - 96, 97, 98, 99, 01, 03, 04
      • GT - 96, 97, 98, 99, 00, 01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11, 12, 13, 14
      • GT500 - 07, 08, 09, 10, 11, 12, 13, 14
      • Mach 1 - 03, 04
      • V6 - 96, 97, 98, 99, 00, 01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11, 12, 13, 14

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