AST ASTLS-14-473 - 04/2009-01/2018 BMW Z4 Lowering Springs - 30mm/25mm coupon_10 Simple Installation: This is a

Simple Installation: This is a direct bolt-on system which retains your factory exhaust tips and includes all necessary hardware for a hassle-free installation

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AST ASTLS-14-473 - 04/2009-01/2018 BMW Z4 Lowering Springs - 30mm/25mm coupon_10 Simple Installation: This is aAST ASTLS 14 473 04 2009 01 2018 BMW Z4 Lowering Springs 30mm 25mm AST Lowering Springs 04 2009 01 2018 Z4 18i 20i 23i 28i 30i E89 Set of AST Lowering Springs to lower that center of gravity without giving in a lot of the comfort you are used to with the OEM springs. Cold coiled on the best Wafios coiling machines. Lifetime warranty against breaking. The AST Lowering Springs reduce your cars center of gravity while maintaining the comfort of OEM