AST Suspension Lowering Springs (50mm/50mm) - 2003-2010 BMW 5 Series 540i/545i/550i/535D Sedan (E60) Colt Part Number W63414 Part Name

Part Number W63414 Part Name Trailing Arm Bushing Vehicle 2016 Subaru BRZ Series

2007 BMW Z4 M 3

Worn Front Control Arm Bushings on your 2002-2004 Subaru Outback H6 (BE/BH/BP) have a huge influence on vehicle stability

Add to that engine bat contaminants to your 1998-2002 Subaru Forester Base

AST Suspension Lowering Springs (50mm/50mm) - 2003-2010 BMW 5 Series 540i/545i/550i/535D Sedan (E60) Colt Part Number W63414 Part NameAST Lowering Springs for the 2003 2010 BMW 5 Series (E60) 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.