AST Suspension Lowering Springs (30mm/30mm TUV) - 2004-2011 Mercedes-Benz SLK-Class SLK 280/SLK 350 (W171) swift-spring-upgrade-for-fortune-auto-coilovers 2003 Nissan Murano SE

2003 Nissan Murano SE

2001 Nissan Sentra Limited Edition (B13/B14/B15)

2003 BMW M3 Base (E30/E36/E46)

2013 Mercedes-Benz E-Class Coupe/Convertible RWD (w/o EDC)

1997 Audi A6 Base (C5/C6)

AST Suspension Lowering Springs (30mm/30mm TUV) - 2004-2011 Mercedes-Benz SLK-Class SLK 280/SLK 350 (W171) swift-spring-upgrade-for-fortune-auto-coilovers 2003 Nissan Murano SEAST Lowering Springs for the 2004 2011 Mercedes Benz SLK Class (W171) are manufactured from a premium high tensile chromium silicone wire which is handpicked by AST engineers for its quality and metal consistency. Each spring is cold wound and then heat treated to increase hardness and reduce internal stresses present after winding. Each spring is then individually shot peened, phosphate treated and then powder coated to outlast even the life of the