CNC-machined LEFT back bulkhead produced from premium extra-strong Swiss 7075 T6 aluminum, black colored coated for very long life and trendy appearance. Strategically machined for paid off weight while keeping power. The small rear bulkheads including the upper bulkhead clamps are dramatically reduced and lighter, offering ultra-low CG regarding the back suspension system. Created for extremely swift & effortless ride height modification. You can forget hassle to dismount the automobile to change the rear ride height! The included trip height shims are placed between your bulkhead and top bulkhead clamp to change ride height: smart & simple. The newest way of ride height adjustment enables ultra-fine modification by 0.25mm increments, compared to the previous 0.5mm increments making use of eccentric bushings. Is employed with right back bulkhead #373015.