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i have recently purchased headers, a k&n fipk, and will purchase true duals with flowmaster 40 series.
i have already purchased and installed a tuner and a throttle body spacer.
i am currently away from my truck and will be for three more months, does anybody have any further suggestions for relatively inexpensive (<$200) engine mods that would help the performance?
these are going on a 2003 5.4L supercrew FX4 to see pictures check out my album.
A MAC 75mm Throttlebody would be a nice addition. When installing it, remove the spacer that you installed, they do nothing but make your wallet lighter.
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.