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JLT Performance Next Generation Cold Air Intake (03-04 Mach 1)

Item 62056
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      Product Information

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


      • Increases of 16 More Horsepower
      • Better Throttle Response
      • 105mm MAF Housing
      • Reusable S&B High Flow Air Filter
      • Black Textured 4-1/4" ID, Roto Molded ABS Plastic
      • Easy Installation
      • No Tune Required
      • CARB EO Number: D-761
      • Fits 2003-2004 4.6L V8 Mach 1 Mustangs


      More Usable Horsepower. With a JLT Performance "Next Generation" Cold Air Intake installed under the hood of your Mach 1 you can expect to see gains of up to 16 more horsepower at the rear wheels across the entire RPM range. In addition to an increase in horsepower you will also see an impressive improvement in throttle response.

      105mm MAF Housing. With a massive 105mm MAF housing molded right into the tube you have a CAI kit you can grow into and not have to worry about buying new kit to reach 550-600 RWHP. Adding a blower? Simply drill out the pre-molded plug on the MAF block located on the bottom of the tube, install a SCT MAF sensor and electronics, add a huge 4.5 X 12” filter and you now have changed your JLT Cold Air Intake into a JLT High Boost 12” Intake.

      Fender Well Induction.
      This JLT Cold Air Intake is designed to draw in cold air from the fender well, rather than the hot engine compartment. Which reduces the incoming airs temperature for better combustion resulting in more horsepower.

      Money Saving Reusable Filter. JLT cold air intake kits come complete with a 4x9 high flow reusable S&B brand air filter. So that means there is no need to go out and buy a new filter every few thousand miles. Now you can just clean the filter, re-oil it, save money, and go!

      Easy Installation.
      The JLT Performance "Next Generation" Cold Air Intake kit was designed to install with just basic hand tools. No extra modifications or special tools are required for an easy 1 hour installation. Reuses the factory "S" style PCV hose.

      CARB Certified. Best of all this Mustang JLT Performance Cold Air Intake Kit is 50-state smog legal under Carb EO# D-671.

      Application. This JLT Performance "Next Generation" Cold Air Intake System is specifically designed for use on the 2003 to 2004 Mach 1 Mustangs equipped with the DOHC 4.6L V8 engine and does not require re-tuning the vehicles computer for operation. Compatible with both 80mm and 90mm MAF's.

      Technical Note. The factory Shaker system is not functional with this JLT kit and will not fit with a strut tower brace.

      Fitment: 2003 2004 Details

      JLT CAI2-FMM-0304

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (12)

      Write a Review

      Ratings Summary

      4.8 out of 5 overall rating from 12 customers

      Installation Time: Less than 1 Hour

      • March 29, 2020

        5 2004 Mach 1 - Rmmtr Installation Time: Less than 1 Hour

        Great part

        Great product easy to install just a great upgrade for your mustang

        Helpful (0)
      • June 04, 2019

        5 2003 Mach 1 - 00Mason00 Installation Time: Less than 1 Hour

        A little more time consuming than expected

        Amazing product, really increased the throttle response. Keep in mind you'll have to cut some of the tape holding the MAF sensor to make it a little longer, I had everything installed before i realized that and had to take it all back out.

        Helpful (0)
      • August 08, 2016

        5 2004 Mach 1 - Grecoredmach1

        Jlt cold air intake

        I am happy with the product, good power for the price but had to watch a video on how to install it, you have to cut and expose more wire for the maf reader and then tuck in the fender well other than that great product!

        Helpful (5)
      • September 24, 2015

        5 2003 Mach 1 - ZackClark92 Installation Time: Less than 1 Hour

        JLT next gen intake

        I trully like this intake it feels like the car has more throttle response that it did before and you can feel a slight increase in acceleration. It is worth it I believe. My Mach 1 has a 130k miles on it and it feels like this woke it up.

        Helpful (5)
      • August 05, 2014

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

        JTL CAI for Mach 1

        Easy install, followed the video from the AM site. Took about an hour and a half. Looks clean after the shaker assembly came out. I will update after I do a dyno pull and bama tune. I highly recommend this product.

        Helpful (6)
      • April 22, 2014

        5 2004 Mach 1 - mikeyz24 Installation Time: Less than 1 Hour

        Great product

        Great product took me about 45 minutes to install. Now when you take off you can hear the car breathe. Definitely noticed a difference in performance. I also installed the bbk 65 ml throttle body at the same time. It is a great combination I would definitely recommend it.

        Helpful (4)
      • February 27, 2014

        4 2003 Mach 1 - Runcnc Installation Time: Afternoon

        JLT performance cold air intake

        Can't really give a full review at this time because car is stuck in garage for winter. Install went well but has some issues getting the air filter to fit inside the wheel well & had to modify the bottom peace of my splash shield?

        Helpful (4)
      • August 17, 2013

        5 2003 Mach 1 - Blackmouth420 Installation Time: Afternoon

        2003 mach 1

        Thanks! Great product so far! Felt probably 15+ gain. With a bassani exhaust (off road x and mufflers), 3.73's, and a bama tune, a simple MUST!!! Did have to strip back 8 inches or so on the mass air harness, but it took about 1 1/2 to instal. Overall a great product! Had some shippings issues but American muscle made it right! Thanks again!

        Helpful (5)
      • February 15, 2013

        5 2003 Mach 1 - Yellow Installation Time: Afternoon

        Easy power, simple installation, great American muscle product knowledge people

        Did everything it said it would do ( jlt cai ) !! Ease of install , product performed like expectation ! Lookin forward to next paycheck and more American muscle parts!!

        Helpful (5)
      • December 25, 2012

        4 2003 Mach 1 - willy2001 Installation Time: Less than 1 Hour

        JLT next generation cold air

        this jlt cold air is a nice product to produce 14 or more to the wheels but the only thing i ran into is my 2 point strut bar , "But guys no problem" i measure were the strut bar interfere, got a torch(u also use a heat gun to be in a safe side) to heat up the cold air intake tube then i push down in till i had clear for the strut brace.

        Helpful (6)

      Questions & Answers (2 answers)

      2 Top Rated Questions

      Can you use a stock MAF on a 2004 Mach 1 with this CAI?

      • Yes, you can reuse your stock MAF on theJLT Performance Next Generation Cold Air Intake. 

      Helpful (1)

      Will the shaker system still function since the tube is no longer running to the intake..

      • No

      Helpful (0)
      Post Your Question

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • JLT plastic intake tube
      • Silicone Coupler
      • Silicone reducer
      • Apron Plate
      • 4x9 S&B powerstack air filter
      • Silicone MAF spacer
      • MAF adapter
      • MAF adapter gasket
      • HD Clamps & all needed hardware

      Tech Specs

      Cold Air Intake Specifications
      Year/Model: 03-04 Mach 1 Filter Placement: Inside Fender
      Material: ABS Finish: Black
      Manufacture: JLT Performance Computer Tune Required: No

      Will It Fit My Mustang

      • Mach 1 - 03, 04

      The factory Shaker system is not functional with this JLT kit and will not fit with a strut tower brace

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