AST Suspension Lowering Springs (50mm/40mm TUV) - 1999-2005 BMW 3 Series 320D/6CYL Touring (E46) LR3 The KSport Airtech Pro Plus

The KSport Airtech Pro Plus Air Suspension Kit is the top-tier air-ride system for the 2017-2019 BMW 5 Series

Quattro RS Chassis Code 8J Bushing 1 Inner Diameter 14

1985 Ford Mustang 2

2007 BMW X5

2012 BMW Z4 (w/o EDC)

AST Suspension Lowering Springs (50mm/40mm TUV) - 1999-2005 BMW 3 Series 320D/6CYL Touring (E46) LR3 The KSport Airtech Pro PlusAST Lowering Springs for the 1999 2005 BMW 3 Series (E46) 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 vehicle.