AST lowering springs for Audi S4 (from May 2019) lower the front 30mm and rear 25mm to reduce the center of gravity while retaining OEM-like comfort. This vehicle-specific, direct-fit spring set is cold‑coiled on Wafios machinery using premium materials; its progressive design balances a lowered stance with sharper handling and is covered by a lifetime warranty against breakage for long-term reliability.
AST 05/2019- Audi S4 Lowering Springs - 30mm/25mm