Swift Sport Spec-R Springs - Toyota Supra 20-UpSwift Spec R lowering springs are designed to be the best balance of street and track with an emphasis on track. These Spec R springs are designed for your specific vehicles shocks, and exploits the full potential of your shock valving. These springs are track tested and tuned and while they are track focused, they can be daily driven. Designed for the track enthusiast who spends most of their time on the street, but does multiple track events per