Stainless Works Ford F-150 2009-10 5.4L 2WD/ 4WD Headers User Manual
Stainless Works For the car

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2009-2010 FORD F-150 HEADER INSTALLATION
INSTRUCTION
Thanks for purchasing Stainless Works Muscleflow Headers for your Ford F-150 Truck.
We have gone to great pains to make sure that our exhaust systems fit and sound great.
Please follow these steps to ensure that your installation goes as planned.
MANIFOLD REMOVAL
1. Disconnect Battery
2. Raise and support the vehicle.
3. Remove the Catback from the flange.
4. Remove the skid plate under the engine – (4) 13 mm bolts. Remove the skid plate
on the left side of the cross member – (4) 13 mm bolts. Support the transmission
and transfer case with a jack and remove the transmission mount to cross member
bolts - (2) 18 mm bolts.
5. Remove (4) 15 mm bolts in the cross member and remove.
6. Unplug and remove the O2 sensors.
7. Unbolt (4) 15 mm bolts in Y-Pipe and remove.
8. Reinstall cross member and transmission mount.
9. Remove air box and dipstick tube.
10. Unbolt the right heat shield with (3) 10 mm bolts and slide it back.
11. Remove both front wheels to better access the manifold bolts.