Redesigned motor-side straight back bulkhead to accomplish company aided by the separate wing mount system. The updated design allows to lessen the diff position by 0.5mm for greater collection of ride height alterations. CNC-machined from premium extra-strong Swiss 7075 T6 aluminum, black colored coated for extended life and fashionable look. Strategically machined for reduced weight while retaining energy. The little back bulkheads including the upper bulkhead clamps are considerably reduced and lighter, providing ultra-low CG of this straight back suspension system. Designed for extremely swift & effortless ride height modification. No more hassle to dismount the car to alter the trunk trip height! The included trip height shims are placed in the middle of your bulkhead and upper bulkhead clamp to enhance ride height: smart & simple. The trip height modification enables ultra-fine modification by 0.25mm increments, in comparison with the sooner 0.5mm increments using eccentric bushings. Is utilized with kept straight back bulkhead #373027.