Bilstein 4600 Series 2013 GMC Sierra 3500 HD Denali Front Shock Absorber Exhaust- Mufflers & Tips>Downpipes 2" Inner Liner Flex Pipes:

2" Inner Liner Flex Pipes: The up-pipes utilizes heavy duty 2" flex tubes with internal inner liner

Have SwitchPath™ and want to go Track Edition

The aFe POWER ShiftLogic Transmission Module greatly improves transmission shift feel in the 2007

For superior quality and reliability

Bilstein 4600 Series 2013 GMC Sierra 3500 HD Denali Front Shock Absorber Exhaust- Mufflers & Tips>Downpipes 2" Inner Liner Flex Pipes:Bilstein 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