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No special calibration or setup is necessary beyond standard alignment procedures
Proper break-in procedures should be followed to maximize the lifespan and performance of the new clutch system
The bushings are machined to exact specifications to ensure a perfect fit
Proper fitment and alignment are recommended to maximize performance benefits and ensure safety
symmetrical look that complements the vehicle’s aggressive stance
AST 40mm/40mm Lowering Springs | BMW 3 Series F30 (12-19) (ASTLS-14-394) YMM_2009_2013_Acura_ZDX_YB1 No special calibration or setupAST Lowering Springs for the 2012 2019 BMW 3 Series (F30) 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.
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