Okay time to get creative. The Opel GT and the Saturn Sky are basically the same car. So performance parts built for the one should probably fit the other.
Lexmaul, the German tuner, has a do-it-yourself kit for the Opel that comes with a PPC box that can enhance the potency of the engine with the flip of a programming switch. The Lexmaul tuning kit can increase the 2.0-liter turbo four-cylinder (also in the Sky Red Line) from 264 hp to 312 hp. The Lexmaul Opel GT is also has a lowering kit that lowers the ride height by 30 mm. So if you’ve got a Sky Red Line that’s getting dusted on the street, time to brush up on your German.