The standard Volkswagen Golf GTI Mk7.5 produces 230 PS.
The Mk7.5 is the common nickname for the facelifted seventh-generation Golf, introduced from late 2016 and sold from 2017 in many markets. Its standard GTI used a 2.0-litre turbocharged, direct-injection four-cylinder engine producing 230 PS. That represented an increase over the pre-facelift standard Mk7 GTI, which produced 220 PS.
The most important source of confusion is the GTI Performance version. The facelifted GTI Performance produced 245 PS and added hardware such as larger brakes and a front-axle differential lock. Therefore, 245 PS is correct for the upgraded Performance model, but not for the standard Mk7.5 GTI specified in this question.
The facelift also brought broader Golf-family changes, including revised exterior styling, updated lighting and newer infotainment technology. Depending on market and model year, transmission details varied, with manual and DSG options available. Power figures can also be reported differently when sources switch between PS, horsepower, or regional specifications, so the trim label is essential.