The fourth-generation Chevrolet Tahoe and eleventh-generation Suburban have been in the market for quite a while now. So far, the bow-tie brand has only given them special appearance packages and the like. For the 2018 model year however, Chevrolet introduced something a bit more special for their large SUVs.

Called the RST (Rally Sport Truck), the special edition trim kits out both the Tahoe and Suburban with what they call a 'street-performance' package for their large SUVs. With it, both SUVs can now be upgraded with beefier brakes, sportier exhaust system, as well as exclusive exterior upgrades.

Chevy brings out performance pack for 2018 Tahoe RST

“Chevrolet has continually invested in Tahoe and Suburban, developing models with varying combinations of capability, technology and performance to meet the needs of different customers. The RST is designed for customers who want a street performance look without sacrificing capability or refinement, along with the option of increased performance as well,” said Sandor Piszar, Chevrolet Truck marketing director.

Starting with the exterior add-ons, both the Tahoe and Suburban can now be equipped with a body-color surround grill, blacked-out front grill trim side mirror caps and roof rails and black body badging. Topping it all off are the 22-inch five-spoke alloy wheels wrapped in Bridgestone 285/45 tires.

As mentioned earlier, the RST Tahoe and Suburan SUVs have also been fitted with more powerful brakes courtesy of Brembo. Mounted at the front are large six-piston aluminum calipers that clamp down on 16.1-inch Duralife rotors.

Chevy brings out performance pack for 2018 Tahoe RST

More power off the line has also been made available in the 2018 Tahoe and Suburban. From Borla comes a new performance exhaust system that Chevrolet claimed will deliver a 28-percent increase in exhaust flow. In addition, the new exhaust will also provide an extra 7 – 10 PS to the rear wheels.

But perhaps the most important piece of upgrade is the 6.2-liter V8 that is only available for the Tahoe. Compared to the standard 5.3-liter EcoTec V8 (340 PS and 519 Nm of torque), the bigger 6.2-liter V8 cranks out 426 PS along with 624 Nm of pulling power. It is then mated exclusively to the new 10-speed automatic gearbox, allowing the the Tahoe RST to sprint from 0 – 97 km/h in less than six seconds.

Chevy brings out performance pack for 2018 Tahoe RST

Not only that, the 2018 Tahoe RST will also have the Magnetic Ride Control as standard equipment. It's an active suspension system that immediately adjusts the damping of the electronically-controlled shock absorbers in as quick as 5 milliseconds. This will result in better handling, as well as improved ride quality over traditional damping systems.

“When you want to hustle, it is incredibly fast, with significantly higher levels of acceleration, braking and road-holding grip. When you want to relax, it is very refined, with exceptional ride comfort and interior quietness,” said Eric Stanczak, chief engineer for Chevrolet full-size trucks.

Both the Tahoe and Suburban RSTs are scheduled to make their official launch sometime in late 2017.