11-18 GM 2500HD Pick-up 6.0L V8 3 1/2in Cat Back Spring Kits Improve upon the factory design

Improve upon the factory design by increasing flow via a larger airbox and filter element thereby improving throttle response and lessening the strain on the turbocharger for maximum efficiency

Air-Oil Separator - 3 oz - 2

Muffler - XR-1 Sportsman - 3 in Center Inlet - 3 in Center Outlet - 15 x 5 in Round Body - 20 in Long - Stainless - Natural - Universal - Each

and flanges

5 in Polished Tips - Steel - Aluminized - Ford Modular - Ford Mustang 1998 - Kit

11-18 GM 2500HD Pick-up 6.0L V8 3 1/2in Cat Back Spring Kits Improve upon the factory designExhaust System XP Series Cat Back 3. 5 in Diameter Stainless Tip Stainless Natural 6. 0 L 2500 HD GM LS Series GM Fullsize Truck 2011 18 Kit