Bilstein 18-23 BMW M550i xDrive (w/ Elect. Sus.) B4 OE Replacement (DampTronic) Shock - Front Right - 23-400429 Alignment Kits Unlike the restrictive factory design

Unlike the restrictive factory design

Outflows Factory Intake by 26% Measured Flow: 515 CFM @ 7" H2O

luxury-style ride

NZ1-XTG6 kit features an Xtreme pressure plate for the most demanding driver

Bilstein 18-23 BMW M550i xDrive (w/ Elect. Sus.) B4 OE Replacement (DampTronic) Shock - Front Right - 23-400429 Alignment Kits Unlike the restrictive factory designBilstein B4 OE Replacement (DampTronic) dampers are direct OE replacements for the electronically adjustable dampers found on many European brand vehicles. Bilstein B4 OE Replacement (DampTronic) dampers are specifically engineered to be the best choice for maintaining the original ride quality of your vehicle, while meeting or exceeding OE standards. Bilstein B4 OE Replacement (DampTronic) dampers are the ideal choice for the driver looking to