AST 20mm/25mm Lowering Springs - BMW F20 | F21 1 Series M135i | M140i XF Our aim was to address

Our aim was to address 2 main criteria: 1) Increased flow rate

Reflector inserts are available in a matte black finish

We therefore developed an X Pipe which would fit the standard rear section and produce a sophisticated noise with high quality secondary catalytic converters and resonators to temper the volume

- High quality components for a long durability

eliminating the risk of future cover failure which could ultimately lead to engine failure

AST 20mm/25mm Lowering Springs - BMW F20 | F21 1 Series M135i | M140i XF Our aim was to addressThe 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