H&R 17-20 Audi RS3 8VS Sway Bar Kit - 27mm Front/25mm Rear Suspension>Tie Rods they also add a modest

they also add a modest boost in horsepower

you already have them

6L 3V Engine

The TR007 allows you to fine-tune the rear toe settings for any form of performance driving

Vacuum/Boost reference capability

H&R 17-20 Audi RS3 8VS Sway Bar Kit - 27mm Front/25mm Rear Suspension>Tie Rods they also add a modestH&R'sport Sway Bars are designed for drivers'who desire improved handling without lowering or affecting ride quality. H&R'sport Sway Bars increase your suspension's roll stiffness or its resistance to roll in turns while maintaining ride comfort and dramatically increasing cornering control, lateral stability, and grip. A unique feature of H&R'sport Sway Bars are the smooth, machined like forged ends that, for specific vehicles, allow for