AST 25mm/25mm Lowering Springs - BMW 4 Series G83 M4 Convertible 2 Series (G42) First and foremost

First and foremost

The main reason for the chain stretch is due to small plastic guide that breaks and doesnt allow the main hydraulic tensioner to function correctly

AVAILABLE IN STRAIGHT LIP WITH DIAMETERS 18

Requires minor trimming of the plastic shroud to install

This HPFP upgrade has been specifically designed to achieve maximum performance while still retaining OEM durability and service life

AST 25mm/25mm Lowering Springs - BMW 4 Series G83 M4 Convertible 2 Series (G42) First and foremostThe 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