Installing JLT Performanceâ€™s new cold-air intake for Coyotes with Cobra Jet intakes
By Steve Turner
Thank your lucky stars that Ford is so involved in racing. Due to those efforts we have seen the development of factory engineered parts that have taken our rides to levels they might never have reached. From the Boss 302R to the Cobra Jet, Ford Racing engineers have pushed the envelope of the factory architecture.
One such product that rolled out on the naturally aspirated, 5.0-liter-engined Cobra Jets is the vaunted Cobra Jet 5.0-liter 4V Intake Manifold (PN M-9424-M50CJ; $995), popularly known as the Cobra Jet intake. It is a direct fit on â€™11-and-newer Mustang GTs and Boss 302s, and it is designed to push engine performance and push peak power as high as 7,750 rpm.
For quite awhile Mustang fans looking for more performance have chosen to add the CJ intake, but early on there were no production cold-air intakes were available. Eventually some shops began creating small production runs of intakes for the CJ intake-swap crowd. However, for fans of the cold-air intakes from JLT Performance, the only option had been to make a Three-Valve JLT work.
Well, if you want to run a Cobra Jet manifold on your modern 5.0-liter with a JLT intake, your wait is over. â€œWith more and more requests coming in from customers and dealers we figured it may turn out bigger than we originally thought,â€ JLT Performance main man, Jay Tucker, explained. â€œThe market may be small, but niche markets are what JLT is all about. We don’t make intakes for Nissan Titans, but do make them for the â€™11-and-newer 5.0 with a Cobra Jet manifold.â€
As it turned out, Jay followed the lead of JLT customers that had been molding the JLT Three-Valve CAI to work on the Cobra Jet-equipped 5.0s. Better yet, he was able to create one product to serve two needs.
â€œâ€¦We had two molds producing parts for the â€™05-â€™10 GT, and with some production juggling we knew we could cut that down to one. So, we cut the mold in half and enlarged the opening to meet up with the larger, GT500-style throttle body,â€ Jay added. â€œWeâ€™re all about getting more from one mold, so this tube will also work for those â€™05-â€™10 GT guys who did the GT500 throttle body conversion, so it’s a twofer.â€
To get a closer look at the brand new JLT CJ CAI we headed over to SCT Performance in Sanford, Florida, to meet up with Calibrations Specialist Matt Alderman, owner of a deftly modified 2014 Mustang GT with, you guessed it, a Cobra Jet intake. Mattâ€™s car is an impressive performer thanks to Boss 302 heads, a custom cam setup, and more.
As luck would have it, Matt had been running the JLT Three-Valve intake, so he was only too happy to swap it out for the new CJ-specific unit and refine his calibrations for the inletâ€™s mass-air transfer function.
â€œThe installation was simple, with no special tools needed. It offered great fitment without having to modify anything. Great quality as always,â€ Matt said.
We snapped photos while Matt installed the kit and dyno-tested the carâ€™s new combo, so check it out.
6 thoughts on “Tech: JLT Cobra Jet Cold Air Intake”
Awesome writeup Steve, I know a lot of guys had been waiting on this kit.
Thanks SID. The wait is over, because JLT is shipping these kits now.
Looks great. Any carbon fiber or painted options available?
Painted versions are in the pipeline.
So the cj version is really just for better fitment, no power difference over the 3v version tube? Any comparison reference to the 5″ revolution auto, or frpp tube?
And confused on peak numbers, by the graph and table it’s 438 but reads 442 at the top.
We only tried out the JLT. As for the numbers, a graph has a much higher resolution of data. The chart only captures numbers at the selected rpm intervals. If the peaks don’t fall on those intervals they don’t show on the chart. The chart just gives a better idea of how the performance looks across the curve.