On passing the Detroit Auto Show in 2011, it was announced on the North American partnership units Saab Cars North America with the Swiss tuning firm Hirsch Performance AG, engaged in finalizing Saab cars. Earlier tuners offered their services only in Europe, and now they can use, and buyers from the United States. The key point, which is marked in the press release, is to maintain a full warranty of the cars that have been fine-tuning specialists from Hirsch Performance. Among the improvements included an increase in capacity of 2.0 and 2.8-liter 30 hp at models Saab 9-3 and 9-5. Also, customers can order a sports exhaust system, one of two brand-name sets of wheels, stiffer springs and a small aerodynamic package including different grille, carbon front splitter and rear diffuser. Also tuners of Hirsch Performance are willing to make a few strokes in the interior of the Saab, from the aluminum pedals and carbon fiber instrument panel trim – leather upholstery to the seat. The cost of all these improvements still to be confirmed.