JBA 1812SJT - Manual (Page 3)

1. Place vehicle in a location where the floor is solid and flat, with adequate lighting. Do not attempt
to work on a hot engine. Heat causes metal to expand and makes removal of fasteners difficult at best.
Disconnect the battery cables from the battery. Raise the front of the vehicle to obtain adequate access to
the bottom exhaust manifold flanges. Use large-base jack stands to support the vehicle. Do not rely on the
jack! Block the tires to prevent the vehicle from rolling off the jack stands.
2. Spray WD-40 or some type of penetrating oil on all accessible fasteners and fittings before attempting
to remove them.
3. From underneath the vehicle, remove nuts attaching the manifolds to the exhaust pipe.
4. Remove bolt attaching steering shaft to steering rack. Slip shaft off rack.
5. From above, remove bolt attaching oil dipstick to head. Remove dipstick.
6. Carefully remove spark plug wires. Twist boot prior to tugging on them. Do not pull directly on the
wire. Remove spark plugs.
7. Remove bolts attaching manifolds to head. Remove manifolds.
8. Clean gasket surface, be careful not to gouge the head.
9. Install JBA headers using the JBA gaskets and supplied hardware. (Factory cat-pipe studs and nuts are
reused at the collector)
10. Re-install spark plugs, and plug wires. Use the provided extended JBA Power Cable for drivers side
rear ignition wire. Re-install dipstick.
11. From underneath, connect headers to exhaust pipes, using original metal gaskets, flat washers, and
factory nuts. Re-connect steering shaft, and secure.
12. Check to ensure there is adequate clearance on all fuel lines, brake lines, battery cables, wire har-
nesses, etc.
13. Re-check everything!
14. Start engine, check for leaks and test drive. Then let engine cool and re-torque header bolts.
15. Periodically check and retighten header bolts.