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contributing to a more responsive throttle feel and enhanced engine sound
yet strong
ensuring they can handle the stresses of aggressive driving while maintaining their shape and function over time
giving you the confidence to accelerate harder and shift smoothly under demanding conditions
1989 Porsche 911 Carrera 4 (964) AWD
AST Lowering Springs 25mm/20mm | BMW 4 Series F36 (14-21) (ASTLS-15-2725) Kinesis K27 contributing to a more responsiveAST Lowering Springs for the 2014+ BMW 4 Series (F36) 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