AST Suspension 5100 Street 1 way Adjustable Coilovers BMW 1 Series F AST Suspension Lowering Springs (50mm 35mm TUV) 2004 2011 BMW 1 Series 118 120 Hatchback (187 182) AST Adjustable Lowering Springs Mercedes Benz AMG CLA35 (C118 X118 ABM Air Suspension Adjustable Shock for BMW & X Series AST Suspension Lowering Springs G8x M3 4 ASTLS 21 080 G87 Flickr. AST Lowering Springs for the 2004 2011 BMW 1 Series (187 182) 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. Features Progressive rates on most vehicles. EDC Compatible (if applicable to vehicle) Each spring is blocked and computer tested prior to shipping, which reduces any settling once installed on the vehicle. Lifetime warranty on breaking. Most of our spring applications are TUV Certified and certificates can be provided upon request. Lowering Range Front: 50mm Rear: 35mm TUV Certified? Yes Vehicle Fitment Part Number: ASTLS 14 313 Product: AST Lowering Springs Production Years: 2004 08 2011 Model Years: 2004 2011 Make: BMW Model: 1 Series Chassis: 187 182 Model Note: Note 1: Additional Vehicle Fitment 2004 BMW 1 Series 118 120 Hatchback (187 182) 2005 BMW 1 Series 118 120 Hatchback (187 182) 2006 BMW 1 Series 118 120 Hatchback (187 182) 2007 BMW 1 Series 118 120 Hatchback (187 182) 2008 BMW 1 Series 118 120 Hatchback (187 182) 2009 BMW 1 Series 118 120 Hatchback (187 182) 2010 BMW 1 Series 118 120 Hatchback (187 182) 2011 BMW 1 Series 118 120 Hatchback (187 182)