Korea's automakers are looking to boost their lineup with more turbochargers.

Hyundai and Kia's current lineup of two turbocharged engines in the United States will soon grow, the automaker said late yesterday.

Globally, Hyundai is increasing its investment in both turbocharged gasoline and diesel engines, although the latter probably aren't bound for most markets in North America. However, buyers in the United States can expect to find more low-displacement, turbocharged engines in the near future.

Currently, the automaker's North American turbocharged fleet includes a 2.0-liter unit that first arrived in the larger Hyundai Sonata and Kia Optima models, as well as a new 1.6-liter four-cylinder that recently bowed in the Veloster Turbo. The 1.6-liter is expected to arrive in other Hyundai and Kia products soon, starting with the redesigned Kia Forte.

An its annual International Powertrain Conference, Hyundai-Kia confirmed that it is working on a 3.0-liter turbocharged six-cylinder gasoline unit likely to arrive first in the next-generation Hyundai Genesis. The 3.0-liter will also boast direct injection, which should give it at least 350 horsepower and 32-33 mpg on the highway in the Genesis sedan.

The new engine will complement a 10-speed automatic transmission set to arrive in 2014 in Hyundai and Kia's highest-end models. That transmission, which boasts two more gears than those found in the Genesis and Equus, will eventually trickle down into some of the automaker's less expensive models.

In addition, Hyundai is working on a rev-matching manual transmission for its performance-oriented models.