AST BMW F40 M135i xDrive Lowering Springs Select Lowering:Front: 25mm | Rear: 20mm This rear diffuser is manufactured

This rear diffuser is manufactured from pre-preg carbon fibre using a state-of-the-art aerospace autoclave system

- BMW F80 M3 Competition

- Audi TTRS 8J 250KW/340PS (2009-2014)- Audi TTRS plus 8J 265KW/360PS (2009-2014)- Audi RS3 8P Sportback 250KW/340PS (2011-2013)

Designed for enthusiasts seeking both style and performance

AST BMW F40 M135i xDrive Lowering Springs Select Lowering:Front: 25mm | Rear: 20mm This rear diffuser is manufacturedGive your BMW F40 M135i xDrive the extra stance it needs with AST lowering springs. Available in two configurations, depending on how much you want to lower your vehicle's ride height by. If you want a more practical setup for daily driving, choose the higher option. If stance is your primary focus, the lower setup is for you. AST Lowering Springs are manufactured from a premium high tensile chromium silicone wire which is handpicked by AST engineers