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Installation time varies depending on experience but generally can be completed within a few hours
Its smooth interior surface minimizes airflow restrictions
This combination results in a clutch system that can handle spirited driving and occasional track use while maintaining a comfortable pedal feel for daily driving
Designed for temporary or permanent application
The hubs feature a sleek finish that complements various interior styles
AST Lowering Springs 30mm/20mm F&R | BMW 3 Series E90/E91 (ASTLS-14-390) (SPF14-390) YMM_1996_2004_Acura_RL_KA9 Installation time varies depending onAST Lowering Springs for the 2005 2012 BMW 3 Series (E90 E91) 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.