Irmscher has released a new tuning kit for the Open Astra GTC that makes the car more sportier. They started off under the hood, where the 1.6-liter turbocharged engine was tuned to produce 220 PS (162 kW / 217 bhp) and 374 newton meters (202 lb-ft) of torque. Exterior styling improvements consist of the new body kit, featuring a front spoiler with lip, new grille, roof spoiler, and rear diffuser. Next, a new quad piped exhaust with elliptical shaped tips was installed by Irmscher on the Opel Astra GTC.
