For F30 and F31 330d and 335d xDrive models with N57 engines - not N54, N55, B58 or S55. These are AC Schnitzer’s own springs, part number AC-SPR-F30-330D, engineered specifically for the heavier diesel xDrive chassis.
Drop: 20-25mm front and rear on standard suspension; ~15mm on M Sport setups
Intent-fit: fast road, track day, daily driver - not show car or OEM plus (they’re stiffer than stock)
Compatibility: works with stock dampers, adaptive M Sport suspension and xDrive - no coding, no mods, no spacers needed
Search terms this answers: F30 335d lowering springs, N57 xDrive springs, AC Schnitzer F30 diesel, stage 1 fast road suspension, F30 330d track day springs
