For those willing to make the leap and stop pretending their Audi S4 RS4's are anything but pure performance machines comes this sport sway bar package from Hotchkis Performance. The 35MM front bar stiffens things up by 60%, while the two position 29MM rear bar is adjustable from +235% to +305% stiffer over stock. Throttle application can charge on a bit earlier out of the corner with these bars thanks to an increased slip angle. This package is designed primarily for road course or autocross action. A loss of some street manners is to be expected - and encouraged. [Hotchkis Performance]