Bilstein B8 17-22 530i xDrive (w/o Elec Suspension) Front 46mm Monotube Shock Absorber 1992-gmc-k1500-sierra-esi8959696 5" diameter into the mufflers

5" diameter into the mufflers with dual 2" out Cat-Back(tm) system features the S-Type II systems which uses the latest muffler design to eliminate sound frequencies often associate with resonance or drone

The system is made to give you the best performance

25" Cat-Back system features the classic S-Type muffler and Polyphonic Harmonizer technology which utilizes patented units that contain pipes of different diameters and lengths to create multiple exhaust notes that harmonize to deliver a clean

the ATAK(r)sound level

Bilstein B8 17-22 530i xDrive (w/o Elec Suspension) Front 46mm Monotube Shock Absorber 1992-gmc-k1500-sierra-esi8959696 5" diameter into the mufflersBilstein B8 Performance Plus dampers are a performance upgrade to OE dampers designed to be paired with aftermarket lowering springs. 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. B8 Performance Plus dampers are the ideal solution for pairing with a lowering spring for improved