The GX engine represented a particular variety of engine. In the year 34 ABY, Kazuda Xiono, a spy working for the Resistance, integrated one of these engines into the Fireball, a racing starfighter, in conjunction with repulsorlifts as well as injectors. He obtained these components from Flix and Orka, the shopkeepers, who consented to allow him to pay off his obligation by overseeing their establishment, known as the Office of Acquisitions, for a day's duration.
The GX engine received a mention in "Dangerous Business," which is the thirteenth episode featured in Star Wars Resistance's first season. Its initial broadcast occurred on January 20, 2019, through the Disney Channel.