Tech: 2015 Mustang JLT CAI Test

2015 Mustang JLT CAI Test Featured

Air Superiority

Testing JLT Performance’s CAI for the latest Mustang GT at SCT Performance

By Steve Turner

Since the introduction of the 2015 Mustang, we’ve all be waiting to see what it would be like to mod one. However, we knew that doing so would most likely require reprogramming of the factory PCM. Well, as soon as we learned that SCT Performance had cracked the code necessary to tune the latest Mustangs, we asked if they were up for testing JLT Performance’s latest cold-air intake.

SCT’s automatic 2015 Mustang GT has already seen a lot of driving, a few drag strip passes, and more than a few dyno pulls. With 93-octane fuel in the tank, it put down 360.06 horsepower and 343.80 lb-ft of torque to the rear wheels in stock form.
SCT’s automatic 2015 Mustang GT has already seen a lot of driving, a few drag strip passes, and more than a few dyno pulls. With 93-octane fuel in the tank, it put down 360.06 horsepower and 343.80 lb-ft of torque to the rear wheels in stock form.

JLT took a big gamble and invested in creating its intake system for the 2015 Mustang GT long before the cars were available. As we recently showed you, the kits definitely fit, but we were anxious to see what kind of gains could be had on the latest 5.0-powered Mustang.

Here’s the finished install. The JLT CAI looks sharp. It really dresses up the engine, and it gives the induction some audio personality, which it was sorely lacking.
Here’s the finished install. The JLT CAI looks sharp. It really dresses up the engine, and it gives the induction some audio personality, which it was sorely lacking.

Likewise, we recently shared with you SCT’s impressive tuning gains on its stock, automatic GT. Yes, the same GT that the company purchased on the way to the NMRA World Finals. And, the same one that made the historic first pass down the drag strip with head calibrator Matt Alderman behind the wheel.

Knowing that SCT had the hardware and software to do the job, we asked if they had a JLT CAI ($349) on the way. It turned out that they did.

So, we made the trip over to see Matt work his magic with the first calibration of an aftermarket CAI on a 2015 Mustang.

Here are the sights and sounds of his efforts:

Being up close and personal for such groundbreaking events is always a lot fun. It is even more fun when you see risks pay off and big gains created. This is just the beginning of modding for the S550 platform, so we can only imagine what’s in store for these cars. For now, however, we’ll enjoy seeing nearly 400 rwhp from a CAI and a tune…

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With the new, JLT-specific mass-air transfer function loaded, it was time to rock the rollers at SCT Performance.
With the new, JLT-specific mass-air transfer function loaded, it was time to rock the rollers at SCT Performance.
Read ’em and cheer. We know the tune worked well, but with the JLT and the tune, the 2015 GT put down 396.48 horsepower and 369.80 lb-ft of torque. Yes, nearly 400 rwhp and gains of 36.42 hp and 26 lb-ft of torque over the stock combo. The JLT picked up peak-to-peak gains of 11.85 hp and 5.48 lb-ft of torque over the tuned version, but there’s more to the story than that.
Read ’em and cheer. We know the tune worked well, but with the JLT and the tune, the 2015 GT put down 396.48 horsepower and 369.80 lb-ft of torque. Yes, nearly 400 rwhp and gains of 36.42 hp and 26 lb-ft of torque over the stock combo. The JLT picked up peak-to-peak gains of 11.85 hp and 5.48 lb-ft of torque over the tuned version, but there’s more to the story than that.
While the graph has the highest resolution of data points, it’s instructive to look at sampling of the data in chart form. As you can see, the JLT pulls much harder as the rpm climbs. At 6,700 rpm it showed its best gains of 14.57 hp and 11.42 lb-ft of torque at the wheels. We have no doubt these cars will be over 400 rwhp with this setup in the near future.
While the graph has the highest resolution of data points, it’s instructive to look at sampling of the data in chart form. As you can see, the JLT pulls much harder as the rpm climbs. At 6,700 rpm it showed its best gains of 14.57 hp and 11.42 lb-ft of torque at the wheels. We have no doubt these cars will be over 400 rwhp with this setup in the near future.

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12 thoughts on “Tech: 2015 Mustang JLT CAI Test”

  1. God I wish jay would make a cai for the 11-14 that keeps the true 4″ tube all the way to the tb like the 15+ one is.. I mean I see where the problem with the 11-14 ones were corrected on this new one.. so come on and make one this good for us guys huh??

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