AST 25mm/25mm Lowering Springs - BMW 4 Series G83 M4 Convertible RS2 (B4) Optimized by CAD

Optimized by CAD

9 Deg C for the OEM airbox and 15

The Eventuri carbon ducts are available in both gloss and matte finish to match our plenum

440i(x) (F33)

AST 25mm/25mm Lowering Springs - BMW 4 Series G83 M4 Convertible RS2 (B4) Optimized by CADThe AST Lowering springs offer a solution to reduce your vehicles center of gravity while preserving the comfort youre accustomed to from the original equipment manufacturer (OEM) springs. These springs serve as a direct replacement for your OEM springs and have been developed especially for each vehicle specific. Crafted from premium materials using the best Wafios coiling machines. Their progressive design strikes the perfect balance between