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, end links, greasable bushings, and brackets. Front 1" (25.4mm) Hollow +59% & +71%. Rear 1 1/16" (27mm)Hollow +202% & 220%. Both sway bars are adjustable in two postions.