Bilstein B4 2001 BMW 525i Base Wagon Rear Twintube Shock Absorber 2024-ford-f-150-xlt-esi4078057 5" diameter Cat-Back™ systems (PN

5" diameter Cat-Back™ systems (PN 140329 and 140372) will blow your socks off – with no drone

5" round polished T-304 stainless steel tips on each muffler assembly

System does NOT include AFM ('20-'21)/ DFM ('22-'23) Valves

mainly due to the aircraft-grade high quality T-304 austenitic lightweight stainless steel used in every Borla(r) system

Alternate muffler with Un-Notched necks is 40358

Bilstein B4 2001 BMW 525i Base Wagon Rear Twintube Shock Absorber 2024-ford-f-150-xlt-esi4078057 5" diameter Cat-Back™ systems (PNBilstein 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