Stainless Works 15-19 Ford F-150 5.0L Catted Factory Connect Headers 1-7/8in Primaries 3in Collector Suspension>Traction Bars it is recommended to use

it is recommended to use SR21 on the front and SR11 on the rear

Many spring manufacturers skip this step

5L EcoBoost Turbo Inlet Tubes

Build the ultimate tune for your N55 powered vehicle and go from stock to full race calibration

airflow is critical

Stainless Works 15-19 Ford F-150 5.0L Catted Factory Connect Headers 1-7/8in Primaries 3in Collector Suspension>Traction Bars it is recommended to useImprove the sound and performance on your Ford F 150 with premium headers from Stainless Works. American Made and designed for the 2015 2020 Ford F 150 5. 0L, these headers feature 1 7 8" primary tubes that are CNC mandrel bent to increase air flow, and engineered to create power. These headers come with 3" slip fit collectors, as well as high flow catalytic converters that flow into 3" lead pipes, merging into a Y pipe to allow an easy connection to