PerTronix Dougs Headers D4477 - Manual (Page 2)

Part No. 0110-003088
Page 2 of 3
8-24-2011 DSL
7. Remove the clutch linkage or cable (if stick shift) or shifter and kick down linkage (if
column automatic)
8. Remove the stock studs from the heads.
9. Remove the gaskets and any gasket material or any carbon deposits that remain on the
head surface. The use of a gasket removal agent will ease the removal of any gasket
material.
INSTALLATION
1. Remove the Oxygen Sensors from the stock exhaust and install them into the Doug’s
Headers. Use a small amount of Anti Seize on the threads; be careful not to get any on
the probe as this can contaminate the sensor causing poor running and decreased
performance.
2. Starting on the Passenger side, slide the header into position from below. Apply Anti
Seize to the
Doug’s header bolts, install the new gasket and start all the header bolts
and washers. Tighten the bolts evenly, working from the center out and torque to 22ft.
lbs. NOTE, Left and Right gaskets are different, Match them to the header flange or
you will have an exhaust leak!
3. Reinstall the oil filter.
4. Install the Driver’s side header from below. Install the new gasket using the supplied
bolts and washers using the anti seize in the same manner as the right side.
5. Slide the oil dipstick back into position and bolt to the head.
6. Reinstall the starter and wiring and connect the O2 sensor wiring.
7. Check the oil level and top off as necessary.
8. Connect the negative battery cable.
IMPORTANT CHECK LIST
Be sure that all brake lines and fuel lines are clear of headers and/or connector pipes.
All spark plug wires, battery cables, or other electrical components should be clear of
headers and/or connector pipes.
If dipstick tube was removed, make sure it is installed properly and that the dipstick has
been replaced.
Double-check the tightness of all bolts including brackets and accessories.
STARTING THE ENGINE
Start the engine and allow it to warm up to operating temperature. Check for any unusual
noises or exhaust leaks. If every thing is OK, stop the engine and tighten all bolts while
the engine is still warm.
NOTE: Check the bolts periodically to make sure they have not loosened. Re-tighten
after the first 500 miles and then again at 1000 miles.