The Bilstein B14 (PSS) Coilover Kit offers race-inspired performance for the street. This height-adjustable suspension system allows you to set your ride height for the perfect stance and improved handling dynamics. Features include gas-pressure technology, monotube/Upside-Down technology, and surface coating using Triple-C-Technology for long-lasting corrosion resistance. Lowering range: Front 20-50mm, Rear 20-50mm. Kit contents: 2x Front threaded shock absorbers (E4-FD1-Y412B00), 2x Rear shock absorbers (E4-FD1-Y413B00), 2x Front main springs (E4-FD1-Y522A00), 2x Rear main springs (E4-FD1-Y658A00), 2x Rear height adjusters, 1x Adjustment spanner set.