Mazda has announced specifications for the significantly improved 2019 MX-5 Miata ahead of its Japanese launch on July 26th.

Starting under the hood, the 2.0-liter SKYACTIV-G engine has been “drastically revised” as it has been equipped with an optimized air intake, new cylinder heads, revised pistons and different connecting rods. Mazda says these modifications were made to increase performance while also reducing weight.

The company was coy on the latter figure but the updated engine now produces “15% or more” horsepower. In addition, torque has increased for the “whole revolution range” and the redline climbs from 6,800 rpm to 7,500 rpm. While the Japanese press release didn’t mention specific outputs, a data sheet revealed the engine will produce 184 PS (135 kW / 181 hp) and 205 Nm (151 lb-ft) of torque.

That’s a significant boost over the 2018 model which is rated at 157 PS (115 kW / 155 hp) and 200 Nm (148 lb-ft) of torque in the United States. Besides being more powerful, the upgraded engine is more eco-friendly and fuel-efficient.

The 1.5-liter SKYACTIV-G engine has also been improved with combustion technology developed for the 2.0-liter unit. It now produces 132 PS (97 kW / 130 hp) and 152 Nm (112 lb-ft) of torque. The mill also offers improved fuel-efficiency and better environmental performance.

Additional changes are limited but the car adopts a new telescopic steering wheel and a revised TFT display. Customers will also be able to order a brown soft top, a tan leather interior and 16-inch aluminum wheels with black metallic accents.

Besides the minor styling changes, the car offers additional standard safety equipment in Japan. Highlights include Advanced Smart City Brake Support and a Lane Departure Warning System.

When the model goes on sale next month, Japanese pricing will start at ¥2,554,200 ($23,218) and climb to ¥3,812,400 ($34,636) for the range-topping MX-5 Miata RF.

Note: JDM model pictured