Hotchkis Performance 22842 Sport Sway Bar Set Fits 15-17 M2 M3 M4Sway Bar Kit Sport Sway Bar Set; 32 in. Tubular Front Bar; 25. 5 in. Tubular Rear Bar; FEATURES: Eliminate Unwanted Body Roll Dramatically Improves Handling And Stability Anthracite Powder Coat CNC Bent For A Precise Fit Easy To Lubricate Polyurethane Bushings Proudly Made In The USA Specifications: 32 in. Tubular Front Bar, 25. 5 in. Tubular Rear Bar, Front Rate: 100, 125, 140, 160 lbs in., Rear Rate: 165, 185, 200 lbs in. The experience of John