Bilstein 4600 Series 2013 GMC Sierra 3500 HD Denali Front Shock Absorber Exhaust- Mufflers & Tips>Downpipes An included extension pipe allows

An included extension pipe allows this system to fit both the 2 and 4 door Wranglers without modification

constructed of red cross-linked polyethylene (XLPE)

Air enters the system from the factory fresh air inlets

allowing for predictable handling and a consistent feel

r ide quality and long life

Bilstein 4600 Series 2013 GMC Sierra 3500 HD Denali Front Shock Absorber Exhaust- Mufflers & Tips>Downpipes An included extension pipe allowsBilstein B6 4600 shock absorbers are designed as a direct fit upgrade to OE shock absorbers on stock height light trucks and SUVs. These shock absorbers feature a monotube design which provides consistent fade free performance. B6 4600 shock absorbers utilize a unique, velocity sensitive, digressive piston which reacts to changing road conditions. All B6 4600 shock absorbers are tuned for each specific application to ensure optimal performance is