2013-2014 Chevrolet / GMC Deluxe Max Air Flow Bundle Raw Style Upgrades and Parts the Pro Series mufflers consistently

the Pro Series mufflers consistently delivered performance that is equal to or surpasses open pipe systems

VF499 FORGED 18X10 100-121 POL 3

noticeable torque gain

We recommend the use of Cummins 3977063 head gasket

88 A/R T4 Single Scroll (Mild Performance)

2013-2014 Chevrolet / GMC Deluxe Max Air Flow Bundle Raw Style Upgrades and Parts the Pro Series mufflers consistentlyLooking for a kit that has it all? Featuring a mandrel bent 4 1 2 inch inch intake tube for massive airflow gains, with HSP's signature heat shield Box eliminating unwanted hot air entering the cold air intake. For every 1 degree increase of intake air temperature will result in a 3hp loss. This kit also features HSP's high flow turbo mouthpiece. This turbo mouthpiece will give you the ability to reroute your factory PCV system and remove the factory