With 420 horsepower and 460 pound-feet of torque at its disposal, the brand-new 2015 Cadillac Escalade leads the full-size luxury SUV segment in terms of power. But if that’s not enough for you, then you’ll be happy to learn that the folks over at Hennessey Performance have taken the V-8’s output even further.
Using its new HPE550 package, the Texas-based specialist upgraded the 6.2-liter mill to deliver 557 horsepower and 542 pound-feet of torque, which translates into 32 percent and 18 percent increases respectively. As with most Hennessey tweaks, the package also includes an air-to-water intercooler system and engine management recalibration.
In a conversation with John Hennessey, the company expects one-second faster 0-to-60 and quarter-mile times, but they won’t have the official numbers until testing is completed in late-May 2014. By our estimates, this would put it at around five seconds flat. We will bring you the official numbers as soon as they become available. Top speed, however, will likely not be affected by the HPE550 kit, due to the electronic limiter on the Escalade.
The SUV’s exterior, however, remains unchanged, save for a set of lightweight Hennessey H10 forged, monoblock wheels that can be ordered separately for a hefty $6,950. The 20-inch rollers are supposed to allow more power to reach the pavement, thanks to their reduced rotating mass, which could mean a slight acceleration improvement.
Click past the jump to read more about the 2015 Cadillac Escalade HPE550.