BBK Performance 40100 Premium Series Performance Header Features: Bolt on 10-15 Horsepower Plus Precision Laser Cut 3/8 One Piece Flanges Heavy Wall Computer CNC Mandrel-Bent Tubing Polished Silver Ceramic Coated Finish Hi Temp Gaskets And Hardware Included 50 State EPA Legal Direct Fit Replacement Height: 11.00 Width: 9.00 Length: 20.00 Weight: 15.00 lbs Fitment: 2010/Ford/Mustang/Base Coupe 2-Door/4.0L 4009CC 245Cu. In. V6 GAS SOHC Naturally Aspirated::CARB E.O. D-245-16^^2010/Ford/Mustang/Base Coupe 2-Door/4.0L 245Cu. In. V6 GAS SOHC Naturally Aspirated::CARB E.O. D-245-16^^2010/Ford/Mustang/Base Convertible 2-Door/4.0L 4009CC 245Cu. In. V6 GAS SOHC Naturally Aspirated::CARB E.O. D-245-16^^2010/Ford/Mustang/Base Convertible 2-Door/4.0L 245Cu. In. V6 GAS SOHC Naturally Aspirated::CARB E.O. D-245-16^^2009/Ford/Mustang/Base Coupe 2-Door/4.0L 245Cu. In. ...