Bilstein 16-19 BMW X1 w/ Sport Suspension B4 Rear Twintube Shock Absorber 2010-gmc-sierra-1500-wt-esi6556867 5" diameter BORLA Cat-Back system

5" diameter BORLA Cat-Back system utilizes the factory transition pipe between the catalytic converters and the muffler so that it will fit ALL Cab and Bed configurations

but then you've come to expect that from Borla(r)

and precision computer numerical control (CNC) manufacturing ensures an accurate fit Best of all

Retains factory front muffler (resonator)

Bilstein 16-19 BMW X1 w/ Sport Suspension B4 Rear Twintube Shock Absorber 2010-gmc-sierra-1500-wt-esi6556867 5" diameter BORLA Cat-Back systemBilstein 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