AST BMW F83 M4 Cabriolet Lowering Springs 3 Series (F30 / F31) BMW 2 Series Active Tourer

BMW 2 Series Active Tourer adjustable ride height

5 bar MAP conversion lead

We have installed these rear rotors on customer E87 120i cars and the feedback is consistently positive

with M applications such as E90 E92 E93 M3

more assertive tone and a freer-breathing exhaust when paired with a Milltek Sport rear system

AST BMW F83 M4 Cabriolet Lowering Springs 3 Series (F30 / F31) BMW 2 Series Active TourerGive your BMW F83 M4 Cabriolet 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 powder