Installation Manual

2005-09 Ford Mustang GT & GT500
Long Tube Headers
Part # 1641,16410,16415
1649,16490,16495
3
INS-107
STEP 14
STEP 11
• Remove the stock exhaust manifold and gasket.
(Remove the motor mount from block if needed)
•
Re-install the steering shaft.
STEP 12
STEP 17
• Install the BBK Header and supplied gasket.
Insert and finger tighten the supplied collector
studs, and re-install the motor mount and
starter.
STEP 13
• Lower the motor mounts onto their mounting
studs and tighten the nuts.
STEP 10
Passenger Side
• Unbolt and remove the starter from the bell
housing.
• Install the oxygen sensor extensions by
plugging them in between the factory wiring
harness connectors and the oxygen sensors. If
needed, trim the locating tabs off of the
oxygen sensor extensions with a razor knife
or grinder as shown above.
• Re-connect the negative battery terminal.
NOTE!!! After driving the car for a few hours
its always a good idea to check and re-
tighten the header bolts.
STEP 15
• Install matching short X-Pipe (BBK 1636 or
1637) using supplied hardware.
STEP 16
• Install the oxygen sensors into the BBK
Headers and X-Pipe. NOTE!!!
Be sure to add a
small amount of anti-seize to the top thread
of each oxygen sensor using the supplied
anti-seize packet. As you thread the oxygen
sensor back into the part the anti-seize will
spread evenly throughout the threads.