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Maximum performance gains are achieved when combined with the MMX Air Intake or other aftermarket intake configurations
and G83 BMW M3 M4 models
Requires professional setup
and helps extend the life of nearby components
2 Carbon Fiber Front Bumper Vent Lips
AST BMW G21 M340i xDrive Touring Lowering Springs BMW 435i Parts & Modifications (F32 Maximum performance gains are achievedGive your BMW G21 M340i xDrive Touring the extra stance it needs with AST lowering springs. AST Lowering Springs 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
