aFe Twisted Steel 409SS Shorty Header 04-10 Ford F-150 V8-5.4L

This system is constructed of 1-5/8 IN mandrel-bent 409 stainless steel tubing for maximum strength and durability. Factory style laser cut machined flanges are used used for a secure leak-free seal. Utilizing factory flanges this system is designed to fit in the stock locations with no cutting or modifications required for a hassle-free installation. A mitered merge collector is used to decrease turbulence and increase exhaust velocity resulting in increased horsepower, torque and improved throttle response. Utilizing state-of-the-art computer-aided design technology, this false is designed for custom, high tolerance factory fitment. 100% MIG-Welded for race-proven strength and durability.This Part Fits: Year Make Model Submodel 2006-2010 Ford Expedition Eddie Bauer 2007-2010 Ford Expedition EL Eddie Bauer 2008-2010 Ford Expedition EL King Ranch 2007-2010 Ford Expedition EL Limited 2007-2010 Ford Expedition EL XLT 2008 Ford Expedition Funkmaster Flex Edition 2006,2008-2