Lethal Performance’s GT350 cracks 500 horsepower with bolt-ons and E85
By Steve Turner
Fans of Ford performance are well aware of the marvels of the new Shelby GT350’s 5.2-liter Voodoo engine. Packing 526 high-winding crank horsepower, this naturally aspirated engine features a flat-plane crankshaft, high-flow heads, and more. Ford Performance engineers have already pushed the envelope of the engine platform that began as the Coyote back 2011.
The question is how much more power is available by adding the traditional bolt-on parts and tuning? Fortunately we were able to sit in while Lethal Performance developed a bolt-on power package (PN LP-PWR-GT350-JLT-P-OR; $1,305.34) for the latest Shelby. With support from Lund Racing and Power by the Hour, the Lethal GT350 gained a JLT Performance cold-air intake, Lethal off-road mid-pipes, and tuning. After testing the hard parts and tuning on 93-octane pump gas, they switched over to E85 fuel to see how the combo responded to this high-octane pump fuel.
“We’re very happy with the results we got. Picking up 27 horsepower over stock is a very nice increase in power. Nothing like cracking 500 rear-wheel horsepower on a naturally aspirated car with minimal mods,” Lethal Performance’s Jared Rosen said. “What’s great about this setup is that it consists of such basic mods—intake, tune, and off-road midpipe—and works perfect with your factory fuel system. We’re making this same package available to our customers and I’m sure they’re gonna love it just as much as we do.”
Perhaps the most striking modification of the bunch was the addition of the Lethal off-road mid-pipes. Removing the catalytic obstruction from the exhaust system not only freed up some power, it completely transforms the auditory personality of the GT350.
You can watch it run on the dyno right here…
“The car sounds really good from the factory, especially with the exhaust valves in Sport mode. However once we took the cats out and ran the off-road setup it’s a completely different monster,” Jared enthused. “It’s unreal how awesome it sounds now. I definitely had a huge grin on my face the first time driving it with the off-road pipes and nothing beats flipping that switch from Normal mode to Sport mode.”
It doesn’t just sound better. The Lethal GT350 is even more fun to drive. We took it for a quick spin and could immediately feel the extra power and torque as we banged through a few gears. Of course, Jared gets to drive it all the time, so the transformation was even more apparent.
“Without a doubt you can definitely notice the difference. The car screams already but definitely somewhat lacks a bit of that midrange power to get through the rpm quickly,” he added. “After the intake, tune, off-road pipe and some E85, that extra torque provided a noticeable difference in the midrange and really wakes things up. It was a fun ride home for sure.”
Team Lethal plans to hit the drag strip and road course with this combo in the near future. After that, this GT350 is destined to see boost courtesy of a Whipple supercharger, so stay tuned.