BMW E90 E91 E92 xDrive Front Coil Spring 37-313432 - Bilstein B3, Fast Road & Track Day

Bilstein B3 front coil spring 37-313432 for E90/E91/E92 xDrive chassis - not a rebranded OEM part, not a budget copy. Hot-set, pigtailed chrome vanadium steel, built to hold ride height under fast road use or track day loads.

• Fitment is precise: E90 xDrive (2005-2011), E91 xDrive Touring, E92 xDrive Coupe - no MK7, no G80, no F30. Don’t guess.
• Search terms this answers: BMW E92 xDrive front spring, E90 328xi coil spring, E91 330d xDrive front suspension spring, Bilstein 37-313432, stage 1 fast road spring, track day front coil, decat + lowering combo (note: these are OE-height; pair with B14/B16 if lowering)
• Not for: non-xDrive E90s, M3 (S54/S55), E92 M3, or any N54/N55 non-xDrive - different spring rates and perches.

Because race car.