Bilstein B6 99-04 Ford Mustang SVT Cobra IRS Rear 46mm Heavy Duty Monotube Shock Absorber 2017-gmc-sierra-1500-slt-esi9778516 Optional resonator 60667 can be

Optional resonator 60667 can be added to the system to dampen the sound level

By changing the block off plates you can adjust the SPL (Sound Pressure Level) to your taste

The muffler contains an internal X-Pipe for increased performance and improved sound

the standards set forth by the vehicle's manufacturer

Bilstein B6 99-04 Ford Mustang SVT Cobra IRS Rear 46mm Heavy Duty Monotube Shock Absorber 2017-gmc-sierra-1500-slt-esi9778516 Optional resonator 60667 can beBilstein B6 Performance dampers are a performance upgrade to OE dampers designed to be paired with the OE factory spring. These dampers offer application specific valve settings with a monotube design to bring out the best handling performance of a vehicle. Each damper is rigorously tested for quality that meets or exceeds OE standards. B6 Performance dampers will provide improved safety and handling performance with the added benefit of world famous