14-UP GM 1500 4.3L V6 5.3L V8 3in Cat Back Cam & Crank Pulleys 5 in Tailpipe - 4

5 in Tailpipe - 4 in Tips - Stainless - Black - Ford Mustang 2005-10 - Kit

Muffler - Flow FX - 3 in Offset Inlet - 3 in Center Outlet - 14 x 9 x 4 in Oval Body - 20 in Long - Stainless - Natural - Universal - Each

Muffler - CrateMuffler - 3 in Offset Inlet - 3 in Offset Outlet - 14 in x 4

5 in Long - Steel - Black Paint - Each

Regardless of the function the size of the hole still represents a restriction of intake air-flow

14-UP GM 1500 4.3L V6 5.3L V8 3in Cat Back Cam & Crank Pulleys 5 in Tailpipe - 4Exhaust System Installer Series Cat Back 3 in Diameter Stainless Tip Steel Aluminized GM V6 GM LS Series GM Fullsize Truck 2014 18 Kit