PerTronix JBA Exhaust 6813S - 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 attempt-
ing 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 of rack.
5. From above, remove oil fill cap. Remove engine cover by tugging upwards gently on the lower
corners. Remove the bolt attaching the oil dipstick to head. The dipstick will swing out of the way. (On
6812S & 6813S 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. Unbolt Catalytic Converter assemblies from the exhaust pipes. Unplug and remove oxygen sensors.
9. Clean gasket surface, be careful not to gouge the head.
10. On the G8 attach the included O2 extender to driver’s side wire harness. Two O2 extender’s on
Camaro applications.
11. Install headers using gaskets and supplied hardware.
12. Re-install spark plugs, 02 Sensors, and plug wires. Re-attach/install dip stick.
13. Check to ensure there is adequate clearance on all fuel lines, brake lines, battery cables, wire har-
nesses, etc.
14. Re-check everything!
15. The G8 headers are intended to work with the supplied Stacker Flanges/Starter Tubes.
The Camaro can be installed using the supplied Stacker Flanges/Starter Tubes or one of our hight flow
mid pipes; 6812SD, 6812SDC, 6813SD or 6813SDC.
16. Start engine, check for leaks and test drive. Then let engine cool and re-torque header bolts.
17. Periodically check and retighten header bolts.