Bilstein B4 OE Replacement 02-05 BMW 745i Rear Left Air Suspension Strut Assembly 2004-chevrolet-astro-ls-esi5425141 The classic S-Type sound level

The classic S-Type sound level will deliver a sound that is much sportier than stock

The system features the aggressive ATAK sound

For over 4 decades

The system also has a functioning valve that works with the factory actuator to change the exhaust volume

Bilstein B4 OE Replacement 02-05 BMW 745i Rear Left Air Suspension Strut Assembly 2004-chevrolet-astro-ls-esi5425141 The classic S-Type sound levelBilstein B4 OE Replacement (Air) dampers are designed to replace the original air suspension systems on many European brand vehicles. Bilstein is an OE supplier for air suspension systems; the quality of these products meets, and typically exceeds, the standards set forth by the vehicle's manufacturer. Bilstein B4 OE Replacement (Air) dampers are designed to connect directly into the original connectors on the vehicle, ensuring modification free