Exhaust Manifold Header for 2011-2015 FORD Mustang 5.0L V8

DESCRIPTION   Vehicle Fitment : 2011-2015 Ford Mustang 5.0L GT / BOSS 302 Model What's in the box: Stainless Steel Racing Header Mounting hardware, bolts and gaskets Product Feature: Designed to increase mid-range power gain Inlet / Outlet Size (Inches): 1.75 / 2.50 Increased inlet / outlet size allow more flow rate (velocity) Made of high quality T-304 stainless steel material TIG welded CNC machine flange Metal gasket included 2 Piece 4-1 racing spec. design Increase high flow air, instantly gain 10 to 15 Hp. / Tq.