There is a new tuning program available for the Audi
S4 by STaSIS tuning firm, and the program is available in two choices for the owners - Touring Edition and Challenge Edition. The first one is the STaSIS Audi S4 Touring Edition which comes with 410-horsepower and 370 lb ft of torque. The tuning program adds a new exhaust system, bigger brakes with high-performance street pads, stainless steel lines and 20-inch heels. It also features a lowered suspension and anti-roll bar kit.