Stainless Works Ford Mustang GT 2011+ Headers - Manual (Page 2)

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10. Remove 02 sensors from catalytic converter pipes and remove (4) 10mm nuts, (2
per side), and remove catalytic converter pipes.
11. Remove battery and battery box (3) 6mm bolts to allow easier access to bolts on
manifold.
12. Mark steering shaft (to aid in later reassembly to the same position) and remove
8mm bolts at lower U joint on steering shaft and disconnect steering shaft and
secure out of way.
13. Remove O2 sensors in the manifolds.
14. Remove wires and (3) 8 mm blots from starter and remove starter.
15. Remove 10 mm nuts from motor mounts.
16. Raise engine off mounts approx. ¾” high.
17. Remove (4) 10 mm bolts and studs holding left motor mount to engine and
remove motor mount.
18. Remove (2) 10mm nuts and (4) 10mm bolts and studs holding right motor mount
to engine and remove mount.
19. Remove (16) 10 mm nuts (8 per side) holding manifolds on and remove.
ASSEMBLY
1. Install left side O2 extension into wiring for front O2 for header (easier to do
now). Ziptie the connections at both ends to assure that they will not separate.
This will prevent any problems with a check engine light (CEL).
2. Apply sensor safe silicone to face of header flanges and install using 10mm nuts
removed from manifolds.
3. Re-install motor mounts (Do not lower engine at this time).
4. Re-install starter, steering shaft, and rear cross brace (must be done before
lowering engine).
5. Now lower engine and re-install motor mount nuts.