The GTsport from Techart is based on the Porsche Cayman S with its main upgrade being an increase in engine capacity from 3.4 liters to 3.8 liters. The engine package also includes upgraded pistons, connecting rods, crankshaft, camshafts, and injection valves. Other Techart items include sport induction pipes, sport airbox, aluminum intake manifold, sport exhaust system, and engine management. The GTsport is visually differentiated from the Cayman S with Techart's Type II aerodynamic kit that includes a front spoiler, side skirt, and a large rear wing. Handling and response have been improved with Techart's Sport Chassis package and the addition of 19" Formula GTS wheels and 19" tires.