Hotchkis Tuning Competition Sway bars take performance to the next level. Competition bars offer the same great benefits as our sport sway bars, but use a more aggressive rear bar set to take advantage of race tires, and to achieve slight over steer. Sway bar sets include front and rear bars, greasable bushings, and brackets. NOTE: Should Be Used For Competition Only! Front 1" (25.4 mm) Hollow +43%, +70% 2 Position. Rear 1" (25.4 mm) Hollow +123%.