Bilstein B4 22-304438 Front Left (NSF) Shock Absorber Strut | OE Replacement | BMW Z4 G29 (2018-) sDrive 20i 30i M40i | Toyota Supra DB A90 A91 (2019-) 2.0 3.0

Bilstein B4 22-304438 Front Nearside Damper Leg - OEM Grade Replacement For BMW Z4 G29 and Toyota GR Supra A90 A91

Restore crisp steering feel, secure road holding and day-to-day comfort with this front left NSF suspension strut from Bilstein. Part number 22-304438 is the direct swap for the factory unit on BMW Z4 G29 models and Toyota GR Supra A90 A91, giving you that tight, confidence-inspiring chassis response without harshness. Ideal for a suspension refresh when your original shocker is tired, leaking or flagged on an MOT advisory.

We run these on customer cars and our own builds, and feedback has been consistently excellent - sharper turn in, better braking stability and a composed ride on British roads, all with OEM refinement.

Why this Bilstein B4 makes a difference

• OEM-spec gas charged twin tube design for consistent damping and dependable comfort
• MacPherson strut format - engineered to match original geometry and mounting points
• Direct-fit front axle left unit - bolt-on replacement that uses your existing top mount and hardware
• Restores factory control, grip and balance - perfect for daily use and fast road driving
• High quality Bilstein construction for long service life and stable performance under load
• Great value fix for knocking, bounce, dive and vague steering feel

Vehicle fitment

BMW

• Z4 G29 Roadster - 11.2018 onward
• Engines - sDrive 20i, sDrive 30i, M40i

Toyota

• GR Supra DB A90 A91 - 03.2019 onward
• Engines - 2.0, 3.0, 3.0 GR

Key specifications

Part numbers and identifiers

Bilstein part number - 22-304438

SKU - BILSTEIN-22-304438

EAN - 4025258861391

UPC - 651860868998

Pairing - front right match

For the offside front, use Bilstein 22-304445. We recommend replacing both front dampers together for balanced handling and even wear.

Professional installation

Want it fitted properly first time with torque-to-spec and alignment check after installation? Book with MJ Modifications in Warwickshire. Request a fitting quote at info@mjmodifications.co.uk.

Compatibility check

We can confirm compatibility before dispatch - add your UK registration or the last 7 of your VIN at checkout.

What you get

• 1 x Bilstein B4 front left nearside strut - 22-304438

Common search terms customers use

front left shocker BMW Z4 G29, nearside front strut Z4, NSF damper leg BMW M40i, Z4 30i shock absorber left, Z4 20i suspension leg, Toyota GR Supra A90 shocker NSF, Supra A91 front left damper, GR Supra front nearside MacPherson, gas charged twin tube strut Supra, OEM spec replacement shock BMW Z4, direct fit front left suspension Supra, front axle left shock BMW G29, Bilstein B4 NSF damper Supra A90, BMW Z4 replacement damper leg, Supra DB front left shocker.