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JMS MAF Extension Harness; Plug-N-Play (96-04 All)

Item 399987
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      Product Information

      Features, Description, Reviews, Specs & Installation


      • Wiring Harness Extension
      • Allows Moving of MAF to New Location
      • Avoids Cutting or Splicing OEM Harness
      • Maintains Integrity of Vehicle Wiring Loom
      • OEM Connectors
      • Length: 36 Inches
      • High-Grade Molded Connecter Housings
      • OE Quality
      • Safe, Easy Plug-and-Play Installation
      • 12 Month Limited Warranty
      • Fits 1996-2004 Mustangs


      Safely Move Your MAF. When you’re hunting down that last fraction of performance or working to boost reliability in a high-performance application that with lots of heat affecting the stock MAF location, you may need to relocate your Mustang’s mass air flow sensor. In cases like this, there’s a tendency to resort to cutting into your Ford’s OEM wiring loom but that introduces more dangers. The JMS 3FT MAF Plug and Play Extension Harness is the perfect answer; don’t cut, just plug!

      High-Grade OE Quality Design and Build. The whole point of the JMS Plug and Play Extension Harness is to maintain OEM levels of build quality, presentation, and safety. JMS makes this MAF harness extension from the finest OEM-quality materials and engineering. The connectors are OE-standard molded, with pin layouts 100% perfect for your Mustang.

      Easy Plug-And-Play Installation. Once you’ve relocated your MAF, the only extra work you have is that one extra ‘snap’ as you connect the second of the plugs on the Extension Harness. How you tidily arrange and secure the harness in your engine bay is down to you, my friend, but this harness will certainly allow for an OEM appearance.

      Limited 12 Month Warranty. JMS backs the quality of the Extension Harness with a full 12 months of limited warranty.

      Application. The JMS 3FT MAF Plug and Play Extension Harness 1996 to 2004 Mustangs.

      Fitment: 1996 1997 1998 1999 2000 2001 2002 2003 2004 Details

      MPN# J9604EXT

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (3)

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      Ratings Summary

      5.0 out of 5 overall rating from 3 customers

      Installation Time: Less than 1 Hour

      • September 03, 2019

        5 2000 GT - SpeedRules Installation Time: Less than 1 Hour

        Perfect extension

        Good quality and perfect for what i was looking for!

        Helpful (0)
      • September 03, 2019

        5 2005 GT - RobertM Installation Time: Less than 1 Hour

        work like a charm

        2002 supercharged s281,installed Anderson power pipe and had to extend the maf in the fender

        Helpful (0)
      • May 14, 2018

        5 2003 V6 - WillianL

        JMS MAF Extension harness

        This product sure helps a lot if u need to reach further I couldn’t be happier with this product Thanks AM

        Helpful (8)

      Questions & Answers (0 answers)

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      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Extension Harness

      Tech Specs

      Will It Fit My Mustang

      • Bullitt - 01
      • Cobra - 96, 97, 98, 99, 01, 03, 04
      • Cobra R - 00
      • GT - 96, 97, 98, 99, 00, 01, 02, 03, 04
      • Mach 1 - 03, 04
      • V6 - 96, 97, 98, 99, 00, 01, 02, 03, 04

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