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Ford Performance Cobra Jet Intake Manifold (11-14 GT; 15-18 GT w/ Manual Transmission)

Item 50430
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      Review & Installation Video

      Hey everybody, I'm Justin with, and welcome to my detailed review on the Ford Performance Cobra Jet Intake Manifold, fitting your 2011 through 2014 GT and Boss Mustang. So this review's gonna cover my thoughts on the Cobra Jet Intake Manifold as an owner. We'll talk about some of the benefits you can expect when bolting everything up. And then finally, we'll cover some of the meat and potatoes of the installation. And as you might imagine, there are a few steps involved when getting this bad boy in place, but nevertheless, it's still not that bad. So I'm going two out of three wrenches on the difficulty meter. And we will have some more detail for you later on.Now, the Cobra Jet Manifold that we have in this video is going to be a great choice for both Boss and GT owners out there looking to maximize their naturally aspirated performance or even your forced induction performance by using an extremely free-flowing manifold like this option here from Ford Performance. Now this thing will effectively raise your peak power in the upper RPM range, but without taking a huge hit to your low-end torque like some other manifold options on the site. Perspective buyers will want to keep in mind the fact that you will need to change out your throttle body in addition to your intake, along with factoring in some custom tuning. The Cobra Jet Manifold is obviously a product that's near and dear to my heart, as I have had this thing installed on my personal GT for a couple of years now. And I absolutely love it. I have no complaints whatsoever. Totally transformed the way the car behaved, and for the better. Now I've always thought of this thing as the perfect compliment to the full array of bolt-ons, of course. But even for owners out there who might wanna maybe do long tubes but don't wanna mess with the emissions or cats, or maybe are afraid of long tubes from an installation standpoint, this is a good alternative. It's gonna cost you roughly the same amount, but at the same time the install's gonna be a lot easier and deliver similar gains.So let's talk about this manifold a little bit more. Now this thing was developed for the 2013 Cobra Jet drag car, the naturally aspirated version, for maximum horsepower in the upper RPM range, right? Makes sense. That's where drag cars typically operate. Now if you look at this thing at first, and if you're like me and thinking old school muscle car or dragster, you're thinking tunnel ram intake, right? Because it looks very similar. In fact, if we had a tunnel ram on the table, they'd look very identical. Long straight runners here, and they're both designed for similar goals, delivering that high horsepower in the upper RPM range.So what does that mean for you guys watching at home? Well, if you're looking to bolt this thing up to your Coyote Power GT or your Boss 302 and lug around town between 2,000 RPM and 5,000 RPM expecting to feel a big difference, you're gonna be really disappointed because that's really not what this thing is all about. Instead you have to ring this sucker out to the moon to really feel a difference. Ford Performance designed this thing to make peak power at 7,750 RPM, and the dyno graph I got for my car really reflects that. Now the factory manifold tends to run out of breath right around 5,000 RPM, where this sucker just kept on climbing all the way to my 7,900 RPM rev limiter.So now that you know a little bit more about what the CJ manifold is all about, let's talk about some of the finer details with this thing. It's made from a lightweight composite material, features 635 cubic inches of volume, and has been pressure tested to support 20 plus pounds of boost. And that leads me to my next point. I talked a lot about some of the naturally aspirated benefits when bolting this thing up, well, there's a lotta guys out there running centrifugal blowers or turbo applications who have used this manifold as well with really, really good results. And

      Product Information

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


      • Original Equipment on the Naturally Aspirated 2013 Cobra Jet Race Car
      • Runners Tuned for 7750 Rpm Peak Power
      • Made from Light-Weight Composite Material
      • Total Intake Volume 635 Cubic Inches
      • Black Finish with a Ford Performance Badge
      • Fits 2011-2014 GT and BOSS 302 Mustangs
      • Fits 2015-2018 GT Mustangs with a Manual Transmission


      More Air for More Power. Your 5.0L coyote V8's stock manifold is designed to perform well at the low end, but it chokes off airflow at the top. When you want peak power, this Ford Performance Cobra Jet Intake Manifold is designed to channel more air directly into your engine with runners tuned for 7750 rpm peak power with no loss of torque.

      Premium Quality. Made of a high tech, lightweight composite, this manifold will help your pony breathe better while improving underhood appearance with its modern "Ford Performance" logo.

      Legendary Ford Performance Quality. When you're adding parts to your pony, trust the folks who know it best to untap hidden potential and unleash the monster under your hood. This intake manifold is featured as original equipment on the naturally aspirated version of the 2013-2014 Cobra Jet Mustang Race Car.

      Calibration Required. To realize the full power potential that this Cobra Jet Intake Manifold has to offer, AmericanMuscle recommends a custom tune with a Mustang Handheld Tuner to reprogram the vehicles computer (ECU) for proper operation.

      Required Throttle Body Upgrade.
      Installation of this Ford Performance Cobra Jet Intake Manifold requires either a GT500 Throttle Body or a Cobra Jet Throttle Body - p/n M-9926-CJ65 or M-9926-SCJ. Requires the Cobra Jet 5.0L Cold Air Intake Kit, p/n M-9603-M50CJ, to mate to the oval throttle body.

      Required GT Upgrade. Installation of the Cobra Jet Intake Manifold on your GT requires the Boss Intake Manifold Install Kit. Please note the inlet hose in this kit will not be used.

      Recommended Upgrade. To take full advantage of the higher RPM capabilities of this Cobra Jet Intake Manifold, AmericanMuscle recommends the use of a 5.0L TI-VCT High RPM Competition Pulse Ring (p/n M-12A227-CJ13) from Ford Performance.

      2011-2014 Automatic Transmission Note. Ford Performance states this Cobra Jet Intake Manifold is designed to be used on manual transmission equipped 2011-2014 Mustangs because the Cobra Jet Inlet Tube doesn't have provisions for aspirator tube hook up found on automatic transmission equipped Mustangs. Automatic transmission equipped Mustangs need an additional fitting in order for the Cobra Jet Intake Manifold to work with an Automatic Transmission. The JLT Performance Cobra Jet Intake Cold Air Intake, part# CAI-FMGCJ-11, includes solid billet aluminum fittings plus instructions to drill a 1/2-inch hole in the Inlet Tube.

      Modifications May Be Required. In order to fit this Cobra Jet Intake Manifold on a 2015+ Mustang, modifications will be required for proper installation. The modifications that is needed, but not limited to, is hood clearance (modification to the factory hood) or the use of an aftermarket hood, plus lower engine mounts.

      The Ford Performance Cobra Jet Intake Manifold is designed to fit the 2011-2014 GT and 2012-2013 BOSS Mustangs as well as the 2015-2018 GT Mustangs with a Manual Transmission.

      Please Note. The Cobra Jet Intake Manifold is not legal for use in California or other states adopting California emission standards.

      Technical Notes.

      • A new Computer Tune is required for installation.
      • Stock fuel rails can be reused for this application.
      • Nitrous oxide is not recommended for use with this manifold.
      • Stock and aftermarket strut tower braces designed to clear factory GT or BOSS manifolds will not fit.

      Fitment: 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020

      Ford Performance M-9424-M50CJA

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (37)

      Write a Review

      Ratings Summary

      4.6 out of 5 overall rating from 37 customers

      Installation Time: Afternoon

      Installation Cost: $100-$250

      • April 05, 2020

        4 2013 GT - HB Installation Time: Full Day

        Pretty good for NA

        2013 Mustang GT dyno'd 429hp and 386 tq to the wheels with kooks shorty headers, stock cats, and flowmaster outlaw x/catback/axleback. feels alright, pulls like crazy over 5k rpms with 3.31s. it screams up top. 1-4k rpms feels stock.

        Helpful (3)
      • January 22, 2020

        5 2012 GT - SilverStang17 Installation Time: Shop Install Installation Cost: $100-$250

        2012 Mustang GT

        I have the Cobra Jet intake on my Pro Charged 2012 Mustang GT auto. Its a Beast with the Pro Charger for sure. The Boss 302 strut bar fits over it just enough with no problems. I had a Bama tune ran good but now and then it stalled out. The Speed Shop I go to put a HP tune in and that is alot better then the Bama for sure. CJ loves to gobble up the air forced into it by the Pro Charger. 10 psi going in to CJ think I will shoot for 4 more psi.

        Helpful (6)
      • November 13, 2019

        5 2014 GT500 - XMambaX Installation Time: Afternoon


        Took a little rerouting but it’s awesome. Be prepared to wire the harness, and also remember once you install this. The further parts. Like cold air intake will Be gt 500.

        Helpful (4)
      • November 21, 2018

        5 2014 GT - MarkB

        Great Gains!

        Can't complain. Picked up some good up top power with the custom dyno tune

        Helpful (10)
      • August 27, 2018

        5 2017 GT - RamonG Installation Time: Afternoon


        Installed the CJ Manifold, with JLT INTAKE, and FR 65mm twin throttle body and 47lbs injectors and it made a huge difference in power. Power you can feel throughout each gear, and redlining at 8000.

        Helpful (32)
      • July 03, 2018

        5 2013 GT - CooperV Installation Time: Afternoon

        the CJ

        This intake is just stupid fast, it doesn't stop pulling in every gear. if youre having any sort of doubts about buying this, don't.

        Helpful (21)
      • March 12, 2018

        5 2014 GT - Edgar31991 Installation Time: Afternoon

        2015 mustang gt

        The manifold fit perfectly only issue was the hood, it rubs a little on the manifold other than that it’s awesomeness

        Helpful (25)
      • December 09, 2017

        4 2011 GT - Kris Installation Time: Afternoon

        Would be 5 stars if...

        Bama wasn't so terrible. I get my tunes and the RPM rev limiter is still 7000. Why? It is things like this(not paying ANY close attention to detail) make me tell people to stay far away from these stooges they call tuners. The Mani went on like a dream, the instructions aren't super clear, but the install is easy enough to get through. Even with a 7k redline it pulls HARD! I juiced up the redline to 7600 for now, and i can only imagine how well it will pull when I get the pulse ring on and push it to 7900! What a great mod for these cars, really wakes it up in the 5-8k rpm range.

        Helpful (26)
      • October 20, 2017

        4 2011 GT - Toplait Installation Time: Afternoon

        Its okay...

        If you use this intake manifold as a daily driver you will not be happy. Even with long tube headers and 3:73 gears I loss about 25 ft lbs of torque below 4k RPM. It feels like my car is stock below 4k RPM. Once above it starts to scream and will continue to push you back in your seat till your desired shift. Don't read this wrong! Even in first and second gear the car will still roast the the stock 245/45R19 tires. If your driving normal you will feel the torque loss. But if your racing and keep the engine revved up this intake manifold is a beast.

        Helpful (43)
      • October 19, 2017

        5 2016 GT - Jerry Installation Time: Afternoon

        Great intake manifold

        Really great intake manifold. Replaced my gt350 intake manifold with this cobra jet. Really see and feel the power difference

        Helpful (30)

      Questions & Answers (97 answers)

      5 Top Rated Questions

      Is this only for manual transmission just like the boss intake?

      • The Ford Performance Cobra Jet Intake Manifold is applicable with automatic and manual transmissions.

      Helpful (24)

      What do the hp/tq numbers look like ? Ive been looking on getting the Boss 302 IM but decided to wait to see what this was all about. will this work with the steeda cai?

      • Ford Racing (Jesse Kershaw) said that it makes 25 more hp than the Boss intake with no further torque loss. It could work with the MAF and filter from the Steeda but you will need to fab an oval inlet. The CJ racecar uses a 123mm FRPP MAF and that would be optimal with the intake and mono blade TB.

      Helpful (16)

      This is a definite future mod for me. But right now I'm looking at tower braces Is there a tower brace that will clear this?

      • The Boss 302 tower brace will fit with this setup.

      Helpful (15)

      Well this fit an automatic as it says "w/manual transmission "

      • The Ford Performance Cobra Jet Intake Manifold will only fit the 15'-18' Mustang GT equipped with a manual transmission.

      Helpful (14)

      Covers? Will the Boss 302 side covers work with this intake, or are there an covers designed like the Boss 302 intake covers for this intake?

      • Yes those side covers will work perfectly with this manifold

      Helpful (4)
      10 More Questions
      Hood Clearance I have the mamba II carbon fiber hood, is there any hood clearance issues with this upgrade? Also, are there any front strut kits that will work with this manifold? 1 answer
      Can it handle forced injection? I am between this and the boss manifold, if I did this I would do the twin 65mm TB and JLT CAI, could this set up handle a twin turbo or would I be better off with the boss manifold? 1 answer
      what's the advantage over the boss intake 2 answers
      Is this better than the Boss 302 Intake Manifold? I originally had the Boss 302 Intake Manifold on My Build List, but then I saw this and couldn't figure out which would be better for what I use my car for. I plan on using my car as a daily driver with nothing over 900 HP, and I want to be able to have it equally at home on the street and the track. In general, which would be the recommended choice? 2 answers
      Why won't this work on a 2015-2019 Auto? 1 answer
      Is there anything else I would need to buy besides cold air intake and throttle body to install this manifold 1 answer
      Will this product work without a tune? I mean driving from my house to the dyno shop to get a tune? 1 answer
      I plan on Ordering this manifold soon. Can you tell me which throttle body will perform better , either the Oval, or the twin 65mm gt500 Throttle body? 1 answer
      For a first time mod on my 5.0 L GT which intake manifold would you recommend the Cobra Jet or the Boss 302? And Why? They seem very similar. 1 answer
      Possibly a stupid question, but can this manifold be re-tuned? I want to run the Comp Stage 1 cams which are designed to increase mid-range power. I also want to run shorty headers and an X-pipe as a happy medium for that mid-range power. However, to get the most out of the engine without going forced induction, I want the intake to match the exhaust. 1 answer

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Cobra Jet Intake Manifold
      • O-ring intake gaskets
      • (4) Aluminum Fuel Rail Spacers
      • (10) Bolts
      • (11) Screws
      • (2) Fittings
      • (1) Jumper Harness

      Tech Specs

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