JBA 1962SJT - 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.
Note: It is recommended that you work on one side at a time.
3. Cut the front exhaust pipes in front of the catalytic converters, just in front of the weld.
4. Unplug the front O2 sensors. Then unbolt the front exhaust pipes and remove them.
5. Remove the four nuts attaching the heat shields to the manifolds. Then remove the shields.
6. Unbolt and remove the manifolds.
7. Using a wire brush or scraper, carefully clean carbon deposits from head. (Use care not to gouge the head
surface.)
8. Relocate transmission cable on the driver’s side by unbolting bracket
from starter bolt. Reinstall starter bolt. Flip the bracket so the front be-
comes the back, and the top becomes the bottom. Move the bracket to the
lower open hole on the bell housing. Attach the bracket using the hard-
ware provided. (See picture)
9. Install the new JBA Headers using the hardware and gaskets provided.
Adjust transmission cable bracket to gain maximum clearance from
header.
10. Install new exhaust connector pipes using hardware provided. Align
with cat converter, tack weld. Check to insure adequate clearance on floor,
torsion bars, trans lines etc.
11. Weld pipes completely.
12. Transfer O2 sensors to new pipes, and reconnect connectors.
13. Check headers to insure adequate clearance on battery cables,wire looms,coolant lines,etc.
14. Reconnect battery cables.
15. Recheck everything.
16. Start engine,check for leaks.
17. We recommend that you re-torque the fasteners on the headers after approximately 100 miles of driving. All
tubular headers require maintenance including periodically checking and retightening of the header bolts.