2001-2016 GM HD Valve Springs, Retainers, and Keepers Complete Kit (110090050) Engine Components>Block Off Plates Optional True Dual Cat-Back(tm) system

Optional True Dual Cat-Back(tm) system available

Low profile foam bump stops

Oil baffle for Dana Spicer 60 and Dana Spicer 70U

it does not include the steps

2001-2016 GM HD Valve Springs, Retainers, and Keepers Complete Kit (110090050) Engine Components>Block Off Plates Optional True Dual Cat-Back(tm) systemDescription The valve spring, spring seat retainer keeper kit comes installed with each PPE Duramax Cast Iron Cylinder head. The tapered valve springs' higher spring rate and lighter valve train weight enable faster response during higher RPMs and eliminate valve float. Premium chromoly material construction ensures the longevity and durability of valve seats, retainers, and keepers. Features 32 springs 32 spring retainers 32 spring seats 32 sets of