Bilstein B4 04-10 BMW X3 Front Left Twintube Strut Assembly 2023-gmc-sierra-3500-hd-slt-esi7028130 5" diameter into dual 3"

5" diameter into dual 3" system

Weighs the same as the factory single system and flows 135cfm greater

while retaining 100% of the power-adding capabilities of BORLA(r)'s patented Multicore design

It delivers that mellow Touring sound with no drone inside the vehicle

Bilstein B4 04-10 BMW X3 Front Left Twintube Strut Assembly 2023-gmc-sierra-3500-hd-slt-esi7028130 5" diameter into dual 3"Bilstein B4 OE Replacement dampers are specifically engineered to be the best choice for maintaining the original ride quality of your vehicle, while meeting or exceeding OE standards. These dampers are the ideal choice for the driver looking to restore the original performance and handling of their vehicle, with the added benefit of world famous Bilstein quality. Restores original driving comfort, handling and safety High power reserves for maximum