JLT Performance Air Box Kit For Vortech And Paxton Superchargers Blow Through Mustang GT 2011-2014

JLT Performance:
100% of 100


  • Improves Air Flow
  • Improves Performance
  • Black Textured Finish
  • Includes Necessary Hardware
MSRP $231.99
You save $2.99

JLT Performance Blow Through Air Box Kit for all 2011, 2012, 2013 and 2014 Mustang GTs Equipped with a Vortech or Paxton Supercharger.

If an increase in airflow is what you need for your 2011-2012 GT Mustang, then you definitely need this JLT Performance Blow Through Air Box Kit (JLTAB-FMGPV-11) from CJ Pony Parts!

Features and Benefits:
- Increased airflow
- Additional 1.5 PSI boost
- Additional 20-30 RWHP and RWTQ increases
- Black textured finish
- Includes new ABS heat shield
- Includes necessary hardware

JLT did some dyno testing with the air box kit with good results. First JLT ran the car the way it comes from Paxton with the stock airbox in a blow through MAF set up. Then JLT swapped out the stock box for the new JLT Air Box Kit and made a couple more runs. The increased airflow resulted in an additional 1.5 PSI of boost and 20-30 RWHP and RWTQ increases through out the runs! This air box kit from JLT also comes with an ABS Heat shield that ties into the stock fresh air inlet in the grille as well as seals to the hood.

Kit Includes:
- Heat shield with a direct duct from the fresh air inlet
- 4-1/2" Flow tube
- 4-1/2x9" S&B Powerstack air filter
- Silicone reducer
- All necessary clamps

*Uses Vortech/Paxton intake tube.
*Tuning is required.
*Not C.A.R.B. approved.

Vehicle Fitment:
- 2011-2012 GT Mustang

California Residents: Proposition 65 Warning

Note: This item is not CARB (California Air Resource Board) exempt and is not legal for sale or use in the state of California.

Installation Difficulty


Novice skill is required for this installation.

Installation Videos

Video Transcript

If you're watching this video, chances are you're looking for ways to add a little bit of horsepower to your Mustang. Whether you're into corner carving or all out straight-line performance, we all love the bolt-on modification that really makes a difference in our cars. A cold air kit is usually one of the first steps to building horsepower, and JLT Performance makes one of the best kits around. Started by an enthusiast who thought he could build a better cold air kit for his '03 Cobra, JLT now offers quality USA-made cold air kits and oil separators for all '96 and up Mustangs.

JLT Cold Air Kits are available in this carbon fiber finish, black textured plastic, they are also available painted to match the OEM paint on your Mustang. They come with these pre-oiled, reusable S&B power stack filters, include all you need for installation, including heat shields where applicable.

JLT oil separators are a great modification for a supercharged car. They also work really well with naturally aspirated cars as well. They catch oil, stop it from going back into your intake track due to crank case pressure. They're available in both the black or silver finish and come with factory Ford lines making them an easy installation.

In this installation, you'll need a 3/8-inch ratchet, 13-millimeter socket, 10-millimeter socket, six-inch extension, flat head screwdriver, Phillips head screwdriver, T20 torx bit, small pick and pliers.

This is JLT's cold air kit for a 2011 to 2013 Mustang that we're going to be installing on this 2013 GT convertible. The first step is to connect a coupler and the air filter to the intake tube. Now we're ready to remove our factory cold air kit. To get to the clamp down here, the intake cover is going to have to come off. In the case of our premium car, strut tower braces are in the way, we're going to have to remove that first. Now I'm going to remove the intake cover by simply pulling upward. Now remove the factory intake sound tube. Before the air tube comes off, we have to disconnect the PCV. Put pressure on the little gray clip upward and slide it off.

We're going to remove the hose clamps for the main inlet tube. Before we can remove the air box, we got to disconnect the mass air sensor. It's a little red tab underneath, slide it back, slide the sensor off. Now we can remove our air box. I'll remove the front part of the box by simply pulling straight back. Now we're going to install the JLT supplied shield. It's going to mount to the stud for the front of the air box and, for the back of it, put it right where the factory bolt was removed from. The last thing we need to do before we can install our new kit is to take the factory mass air sensor out of the original housing. I'm going to use the hardware provided by JLT with the kit and we're ready to install it.

Put it in place and slide the tube over our throttle body. I'm going to make two more connections. Reconnect our sensor. The last step is to reconnect our PCV.

While the new JLT intake does have provisions to hook up your sound tube, we found that JLT sounds good enough on its own, so this really isn't necessary. JLT provides the block off plate for your firewall as well as to block off the intake itself if you're not using the factory sound tube.

Notice our JLT intake kit looks a hell lot better than the stock air box. It's going to make some serious power too. Due to the increase in airflow, you want to pick up SCT XCAL tuner as well. Expect to see about 20 to 30 horsepower, installation no more than 30 minutes. You'll be back in the road in no time.

Vehicle Fitment

This product will fit the following Mustang years:

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