JBA 1809SJT - Manual (Page 3)

4. From above, remove the engine covers by tugging them up on their lower edge. Remove the
right side by unscrewing the oil cap and then tug up on the lower edge. Remove the spark plug
wires, and spark plugs.
5. Now unplug the gang connectors from the coil packs and unbolt the coil pack brackets from
the valve covers.
6. Place a jack under the oil pan with a block of wood between the oil pan and the jack. Remove
the Driver’s side motor mount through bolt. Raise the driver side of the engine approximately
1”. Remove the fasteners attaching the manifold to the head and remove the manifold.
7. Remove the gaskets and any gasket material or any carbon deposits that remain on the head
surface. The use of a gasket removal agent or scraper will ease the removal of any gasket mate-
rial. Use care not to get debris into ports or spark plug holes.
8. Apply a small amount of Anti Seize to the supplied header bolts. Lower the driver side JBA
Header in to place. Using the supplied gaskets and hardware, bolt the new header in place. Start-
ing from the center and working outwards, torque the bolts to 23 ft lbs. Lower the engine, re-
place the through bolt and tighten securely.
9. Remove the passenger side motor mount through bolt. Raise the passenger side of the en-
gine approximately 1”. Remove the fasteners attaching the manifold to the head and remove the
manifold.
10. Remove the gaskets and any gasket material or any carbon deposits that remain on the head
surface. The use of a gasket removal agent or scraper will ease the removal of any gasket mate-
rial. Use care not to get debris into ports or spark plug holes.
11. Apply a small amount of Anti Seize to the supplied header bolts. Lower the driver side JBA
Header in to place. Using the supplied gaskets and hardware, bolt the new header in place. Start-
ing from the center and working outwards, torque the bolts to 23 ft lbs. Lower the engine, re-
place the through bolt and tighten securely.
12. Re-install the spark plugs, coil packs, plug wires and engine covers.
13. Apply a small amount of Sensor Safe High Temp Silicone Sealant to the exhaust pipe flares
of the factory head pipes and re-install using the supplied hardware to connect to the new head-
ers. Torque the bolts to 35 ft lbs. Plug the O
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Sensors back in.
14. Check to make sure that all the wiring, fuel lines, transmission cooler lines, brake lines,
hoses, etc. are clear of the headers or any exhaust components and reroute or relocate those
components as necessary.
15. Reconnect the battery.
16. Start the engine, check for leaks and test drive. Let the engine cool and then re-torque the
header bolts.
17. Periodically check and retighten the header bolts.