BILSTEIN 21-030420 Front Shock Absorber B4 (R1) BMW 3 E21;V ymm_27 The rigid design and custom

The rigid design and custom formed silicone seal coupled with the included COBB Intake Scoop Bracket prevent any collapse under load

These ducts guide ambient air directly into the filters while isolating engine bay heat

1993 Mazda Miata Base

2006 BMW 530xi Sport Wagon AWD

BILSTEIN 21-030420 Front Shock Absorber B4 (R1) BMW 3 E21;V ymm_27 The rigid design and customDescription BILSTEIN 21 030420 Front Shock Absorber B4 OE Replacement The Bilstein B4 is designed as an ideal OE replacement shock absorber. Its specifications and function match the original equipment, and it is manufactured to the same quality standards as OE, making it suitable for reliable replacement of the original shock absorber. The Bilstein B4 restores the vehicles original handling characteristics, providing a driving experience similar to