Bilstein B3 OE Replacement (Air)-Air Suspension Spring (40-273778) _3.5 upgrading to a 3-port solenoid

upgrading to a 3-port solenoid does require tuning

It is also available in a Polished Finish (CSF #8075)

You’ll notice Pro Sticks sitting in many of the cars

Features 3in stainless steel tubing and a very smooth transition down to 70mm at the catback flange for compatibility with stock and aftermarket exhaust systems

SmartSeal clamps and heavy-duty

Bilstein B3 OE Replacement (Air)-Air Suspension Spring (40-273778) _3.5 upgrading to a 3-port solenoidThe Bilstein B3 air spring provides a perfect driving experience under high load, due to the constant counter pressure in the bellows of the air spring. This is an optimum OE replacement for vehicles in which the air spring and shock absorber are installed as separate units. Bilstein B3 OE Replacement (Air) suspension air bags are designed to replace the original suspension air bags on select European brand vehicles. Bilstein is an OE supplier for air