17.5mm sport sway bar kit for all 356 models. The kit features a sway bar that is cold formed from chrome moly steel, hardened to 28 Rockwell, just like the original bar, then powder coated in satin black. The sway bar is correct with tapered ends, and correct clamps, for an authentic appearance. Complete with 20% harder rubber bushings for a positive feel without the problems associated with poly bushings. Designed to improve street handling performance, and high speed stability, without compromising ride quality and originality.