91673-1FLT Flowtech Shorty Headers - Ceramic Coated
2004-08 Ford F-150 V8-5.4L Shorty Header, 1-5/8" Primaries, 2-1/2" Collector, Silver Metallic Ceramic, CARB EO D-115-19;50 state legal; Heavy duty 16-gauge tubing for increased strength and durability; 1-5/8” primary tube diameter for increased exhaust flow increasing performance and improving throttle response; OE style 2-1/2” ball and socket collector connects to factory exhaust head pipe; TIG-welded, machined 3/8” header flange for a leak-free seal and maximum strength; Mandrel-bent tubing provide consistent tubing diameter for smooth flow and increased exhaust velocity; Accommodates all factory OE components; Available in a high heat resistant black paint or a satin silver metallic ceramic thermal barrier coating; Premium aluminum header gaskets included; Headers are a must if you are using a cold air intake, cat-back exhaust system or tuner;
