The ultimate diesel truck performance kit. Stage 2 Kits combine three best-in-class products from Edge Products. Award-winning Evolution CTS2, increasingly popular Jammer Cold-Air Intake, and the all-new Jammer Exhaust. More Power + Improved Fuel Economy + Increased Air-Flow = Optimized Performance. Edge bundled superior performance with tremendous value and savings. Be sure to see just how much money you can save by purchasing a Stage 2 kit as opposed to buying these products individually.