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JLT Cold Air Intake & SCT X4 Tuner w/ VMP Tunes (15-17 GT)

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Features, Videos & Details

  • Add up to 28 HP and 32 TQ With Optional Tune
  • SF4/X4 Tuner with 1 VMP Performance Custom Tune
  • JLT Cold Air Intake Included
  • Holds Up to 10 Custom Tunes
  • Includes One Datalog Review (If Necessary)
  • PC/Windows Compatible Only
  • Fits 2015-2017 Stock GT Mustangs with or without Basic Bolt-On Modifications

Review & Installation Video

Hey everybody, Justin with, here with my review of the JLT Cold Air Intake and VMP tune combo, available for your 2015 and up Mustang GT. All right guys, let's start with the JLT first here. Now, obviously one of the most recognizable names in the category or the after-market when it comes to intakes, and again, it's gonna be a top-rated intake here on the site; all the reviews are very favorable. Now, this is a tune-required intake, meaning you can't just bolt this thing up and go without the use of an after-market custom tune, and that's mainly due to the fact that this thing utilizes a rather large 110-millimeter mass airflow housing, currently the largest available on the site for your S-550 GT. Now, this is gonna let your Coyote motor breathe a little bit easier, and traditionally should make a little bit more power compared to those non-tune required intakes utilizing a smaller mass airflow housing. Now, one thing I do really like about the JLT is that it does incorporate that mass housing into the actual intake tube itself here, making for a much cleaner appearance overall. Some other options on the after-market, or in the after-market, will utilize a metal mass airflow housing in conjunction with a plastic intake tube, and there's nothing really wrong with that from a performance standpoint, but it just doesn't look as clean in my opinion. In addition to that intake tube and mass airflow housing, the rest is gonna be pretty much standard here, guys, in the world of after-market intakes. You're gonna be looking at a high-flow, reusable oil filter in addition to an ABS plastic, molded, open-element style heat shield, which does feature this duct here that will tap into your factory cold air ducting, which is a nice little touch in my opinion. You can also expect all the hardware and couplers needed to get this thing installed. One thing to point out, guys, when driving the car with the JLT installed, I definitely notice some increased noise coming from under the hood, and that's gonna be pretty much standard stuff whenever you ditch your sealed, factory air box in favor of an open-element style filter like the JLT. There's no negative to this; in fact, a lot of people actually enjoy the added noise, but it is worth pointing out and honestly, depending on how loud your exhaust is, you might not even hear it at all. All right guys, that's gonna cover the basics of the JLT. Now, let's hit on the VMP tune, which again, is going to be a premium, or top-shelf, option when it comes to tunes here at AM. Of course, you can expect the power increase, but you're also gonna expect the refinement and drivability, and that's the big separating factor with VMP, so no surging issues, no drivability issues, no stalling issues, things like that, in addition to the power gains throughout the RPM range. Now, they do offer three tunes along with their tuning package here - a low, medium, and high octane tune - depending on what kind of fuel you have in your area, and they also offer one data log revision if needed. Those VMP tunes do come loaded on the SF4/X4 Power Flash Tuner, which does feature some pretty nice bells and whistles on its own - one-touch data logging, capable of reading and displaying up to eight different values at one time, boost air/fuel ratio, intake and temperature, things like that. It can hold up to 10 tunes at once, and it can still read and clear those check engine lights. All right guys, I said it before, but I'll say it again. This is definitely going to be a premium package. Now, both the JLT and VMP tunes by themselves are going to be at the top of the price range in their own respective categories; put them together and you can expect to drop some nice coin on this package when adding it to your car. That being said, you are gonna be seeing some pretty solid gains as we'll show you here in a minute with the Dynojet. But first let's talk about the install; really not that bad here. Basic hand tools, essentially meaning a socket set and a flathead and you should be able to get the JLT installed. We call it an hour on the site but honestly, I wouldn't be surprised if it took you 30 minutes or less to get everything banged out; the tune factor in another half hour, give or take, and again, plug-and-play deal there, so overall, one out of three wrenches on my overall difficulty meter, not a hard thing to install; anybody should be able to accomplish this in their driveway or garage. We already grabbed our baseline run using our manual 2015 GT. We then re-ran the car with the JLT installed and the VMP tuneup loaded, and here's how the numbers look. Baseline, our GT's putting down 386 horsepower, 364 pound feet of torque at the rear wheels. With the JLT/VMP combo, the car's now making 410 horsepower, 369 pound feet of torque; that's good for a peak gain of 24 horsepower over the baseline numbers, and gains as much as 28 horsepower, 32 pound feet of torque underneath the curve. All right guys, so what do all these numbers mean? Well, basically, those peak numbers are nice, they're sexy, of course, but you really need to pay attention to the numbers underneath the curve, because that's the stuff you're gonna be feeling day in and day out. Essentially everything from 2,000 RPM all the way to about 5,000 RPM, your normal operating range for the most part here, the car picked up a ton of torque down low, and that's what you're gonna be feeling, red light to red light, pulling onto the highway, merging, things like that; again, stuff you're gonna be feeling driving the car around town. Now, did it stop there? No, it picked up a ton of power up top as well, so when you're really starting to beat on the car, you're drag-racing the car, obviously it gained up top as well. So, to wrap this thing up guys, the JLT obviously a proven intake, and as you can see when you pair it up with the VMP tune you're gonna be getting a lot of power but you're also gonna see a nice increase to overall drivability, and again, a more refined product, so be sure to learn more about the JLT/VMP combo for your GT, here at

  • Buy this Cold Air Intake and Tuner Kit & Submit your Mustang's Info
  • A VMP Tuning Calibrator will write custom tune files specifically for your Mustang and its Mods
  • Load 'em on your Mustang and GO!

More Power For Improved Performance. Now you can add even more power and improve the performance of your 2015-2017 5.0L GT Mustang with a JLT Performance Cold Air Intake and SCT SF4/X4 Combo Kit from AmericanMuscle that includes 3 VMP Tuning Custom Tunes.

VMP Custom Tunes. When you order this combo kit with SCT SF4/X4 tuner, you aren't just getting a tuner - you are getting the tuner and 1 Custom Tune that are written specifically for your Mustang and your particular modifications by VMP Tuning. VMP Tuning even provides one post sale datalog review (if necessary) to assure your Pony is running healthy and strong.

JLT Cold Air Intake. The JLT Performance Cold Air Intake kit completely replaces your 2015-2017 coyote Powered GT Mustangs restrictive factory air box and paper filter element with a high flow S&B Powerstack filter assembly for a measured increase in airflow for more horsepower, improved torque, and better fuel economy. All while filtering out harmful power robbing particles. See more info about this cold air intake - Here

SCT X4 Tuner With VMP Tunes. The SCT SF4/X4 handheld tuner will allow you to re-tune your S550 Mustangs computer for more power and better drivability. We even included three VMP Tuning custom tunes to take full advantage of your new JLT Cold Air Intake! See more info about this tuner - Here

Increase Your Mod's Potential. From the factory, Ford programs their vehicles to cater to the needs of the daily driver, not the performance enthusiast who adds aftermarket bolt-on modifications in search of more power. That is why a custom tune file is so important, by optimizing the air/fuel ratio, adjusting ignition timing and tweaking variable cam timing, a VMP Tuning Custom Tune will squeeze out the extra power your aftermarket performance mods have to offer.

Application. This JLT Cold Air Intake and SCT X4/SF4 Power Flash Tuner with 1 Custom Tune File by VMP Tuning is specially designed to fit the 2015-2017 GT Mustang's equipped with the coyote 5.0L 4 valve V8 engine with or without basic bolt-on upgrade modifications such as a Throttle Body and/or Full Exhaust System.

**Please Note: The SCT SF4/X4 Tuner ships blank from AmericanMuscle, the custom tune files will be emailed directly to the end user within 5-7 business days from VMP Tuning.

Fitment: 2015 2016 2017 Details

CA Residents: Warning: California's Proposition 65

What's in the Box
  • (1) SF4/X4 Power Flash Tuner
  • (1) USB PC Interface Cable
  • JLT plastic intake tube
  • Silicone coupler
  • ABS Heat Shield
  • 4.5x9 S&B powerstack air filter
  • HD Clamps & all needed hardware
Installation Info
Tech Specs

SCT SF4/X4 Power Flash Tuner Features:

  • The SF4/X4 by SCT is the Newest Replacement for the Popular SF3/X3
  • Compact Design - 2.7” wide X 5.5” tall
  • Full Color 2-3/4" Diagonal LCD Display With Auto Dim Feature
  • Built-in WiFi for Easy Firmware Updates
  • Diagnostic Code Reader - Reads/Clears DTC Trouble Codes
  • On Screen Data Logging and Monitoring
  • Easy to Load; Easy to Restore - Automatically Stores Factory Settings
  • PC/Windows Compatible
  • Click for Instructions on Loading Custom Tunes to your Mustang.
Tuner Specifications
Chip/Handheld: Handheld Custom/Strategy: Custom tunes by VMP Tuning
Memory Size: 4 GB Custom Tunes Held: 10
Year: 2015-2017 GT Model: SF4/X4 Power Flash Mustang Custom Tuner
Manufacturer: SCT Special Features: Includes one datalog review from VMP Tuning
Will it fit my Mustang?

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Questions & Answers (4)

4 Top Rated Questions

Will this SCT VMP Tunes wok perfectly on an RHD Indian Mustang GT And BTW I use 93 Octane

  • You will want to contact VMP directly to make sure they are able to tune for the Indian spec models.

Helpful (0)

VMP is asking me whether this kit is a series 1 or series 2 CAI from JLT. AM nor JLT has any info as to whether or not this CAI has anything listed along those lines. Could you help me out with any info about this? I can't get my tune until I answer their email about this. Thanks!

  • The JLT Cold Air Intake & SCT X4 Tuner comes with a JLT Performance Cold Air Intake, it is not a Series 1 nor Series 2.

Helpful (0)

Do you get free future tunes with this product as you upgrade parts such as longtube headers etc in the future?

  • The Free Tunes for Life Membership is only available with Bama Tuners, not VMP.

Helpful (0)

where is the link for the tuning info? I purchased this a couple of weeks ago and still no tune link..

  • I will have the attached link below for you! This could also be found on the product page under "tune your ride in 3 easy steps"

Helpful (0)
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Customer Reviews (14) Write a Review

Overall Rating 3.9

out of 5 stars

  • Performance Gain 4.357143 4.4
  • Seat Of Your Pants Feel 4.071429 4.1
  • Ease Of Use 4.071429 4.1
  • Bang For Your Buck 4 4
  • Preferred Tune: Performance

  • 1/5

    April 23, 2018

    Long wait for the tune

    I received my tuner and cold air intake 3 weeks ago and I am still waiting for the tune from VMP. They look great sitting on my work bench. I called American muscle customer service and they said VMP is a third party and they can only ask them to expedite the tune.


    Year: 2017 Submodel: GT

    Helpful (2)

  • 5/5

    March 07, 2018

    JLT CAI Roush Axelbacks

    Great combination and very easy to install yourself. Highly recommended.


    Year: 2016 Submodel: GT

    Helpful (3)

  • 5/5

    February 09, 2018

    Good buy with noticeable power gain

    I bought this setup along with Borla S-Type cat back. VMP emailed me a custom tune for this application and it was a nice power gain from stock. My only issue is the amount of time you have to wait on the tune from VMP. They say 7-10 days but reality is 3-4 weeks.


    Year: 2016 Submodel: GT

    Helpful (3)

  • 5/5

    January 01, 2018

    Exactly as described

    Exactly as described. Makes the car run awesome. Well worth the money


    Year: 2017 Submodel: GT

    Helpful (3)

  • 5/5

    December 09, 2017

    Significant horsepower increase

    This CAI with the JLT intake made 46 horsepower over stock.


    Year: 2017 Submodel: GT

    Helpful (3)

  • 1/5

    October 07, 2017

    Jlt and sct

    I recived cold air intake and tuner. i had to wait 1 week to get my tune


    Year: 2017 Submodel: GT

    Helpful (3)

  • 5/5

    September 08, 2017

    combo well worth it

    I installed this on my 17 GT and the performance was jaw-dropping, this intakeandtuner combo was well worth it and the staff at American Muscle was awesome. Easy to install easy to tune. My only regret was not buying it sooner...


    Year: 2017 Submodel: GT

    Helpful (3)

  • 5/5

    July 02, 2017

    Jlt intake

    Great combo!!! Took about 20 min to install the intake and another 30 to figure out how to use the running device. I love the sound of the car, car makes way more power and my gas mileage has improved.


    Year: 2016 Submodel: GT

    Helpful (3)

  • 5/5

    June 10, 2017

    Best mod yet !!

    Extremely happy with my purchase and my vmp tunes . Super helpful and easy install .. I have a premium package and I was worried the tune was gonna mess with my computer especially my blind spot sensor .. nope ..!! All is good .. every thing runs like it should.. no glitches just pure awesomeness lol


    Year: 2015 Submodel: GT

    Helpful (3)

  • 1/5

    May 31, 2017

    Not worth the hassle

    Had to wait forever to get tunes on top of it all get my tunes in email.... ordered ghost cams ..... didn't get ghost cams, beyond unhappy. kit is nice tho


    Year: 2015 Submodel: GT

    Helpful (4)

  • 5/5

    May 02, 2017

    JLT Cold Air Intake SCT X4 Tuner w/ VMP Tunes

    Cold air went on easy and fit and finish is nice. SCT X4 easy to use once everything is installed on computer and downloading custom tune was simple. VMP tune defiantly felt through the rpms.


    Year: 2015 Submodel: GT

    Helpful (4)

  • 5/5

    September 02, 2016

    So far so good

    Fast delivery everything in box with directions to for install for intake.the tuner had good directions on website and videos.the only complaint is im painting the intake ti match color of my car and the intake is rough on edges and seems having to prime and sand for a clean paint job.


    Year: 2015 Submodel: GT

    Helpful (4)

  • 1/5

    May 21, 2016

    install not for the daily driver or weekend warrior.

    a.m. was extremely quick on this shipping of this product. great service with them as always. Install was very simple if you've done a cai before the instructions are almost pointless. great fit on every piece. then when you go to tune the car everything falls apart. hours sitting in front of the computer trying to update the tuner becuase their wireless updating fails at the third step every time. not just my connection either becuase i tried both neighbors as well. downloaded everything from sct to do the updates and drivers wouldnt install. finally get all the downloads squared away. tuner says its fully updated and it still throws errors. make an attempt to call their customer service but they are only open monday through friday. so all said and done 5 stars to a.m. 5 to jlt. and negative stars to sct. litterally wasted an entire day on their tuner trying to trouble shoot and cant even get assitance. performance gain gets 1 star becuase now my car cant be driven until i put the stock intake back on.


    Year: 2016 Submodel: GT

    Helpful (9)

  • 5/5

    February 16, 2016

    Quickest and easiest way to get more HP!!

    The JLT intake was very easy to install. Approximately 20 minutes and that's if you're not trying to rush it. I had to make one phone call to SCT for my computer to recognize the tuner, but that was quick and painless. The custom VMP tune I received feels very strong. The 2 items together woke up the GT and took it to the next level. Normal driving feels good with no issues. .....then when you jump on it the thing is a Beast!!


    Year: 2016 Submodel: GT Las Vegas, NV

    Helpful (4)

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