Manual

1986-04 Mustang V8
High Performance Mid-Pipes
Part #: 1507,1521,1562,1563,1565,1566,
1581,1616,1618,1661,1662,
1663,1664,1665,1666,1669,1670,
10010
1
INS004
Special Tools
Required:
•
Sawz-All
•
WD-40
Install Time:
Approximately
45 mins
Difficulty:
2 out of 5
Follow these instructions carefully to ensure correct fitment and operation.
STEP 1
STEP 2
STEP 3STEP 5
• Place all four corners of the vehicle on jack
stands or use a drive on lift.
• Remove the oxygen sensors using a 22mm
wrench. Then take off the header flange nuts at
the collector and disconnect the air tube from
the H-Pipe. (In some instances cutting 1-2
inches in front of the factory clamp for the
air pump tube on the H-Pipe may be
necessary).
• Disconnect the negative battery terminal.
• Disconnect the mufflers from the mid-pipe.
Lubricate the H-Pipe hangers with WD-40 or
equivalent and slide back to remove.
STEP 6
*1994 and newer models are equipped with bolt on hanger system rather than steel slide style used on the 1986-93
models. To remove simply unbolt the H-Pipe from the hanger mount.
• Using the supplied muffler style clamp, install
over the mid-pipe crossover tube and tighten to
avoid any leaks. This part can also be welded to
avoid any exhaust leaks
• For installation simply reverse the previous
steps, making sure to reconnect the air tube to
the connector tube located on the new mid-pipe
(Used supplied hose and clamps if cutting was
required).
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.
NOTE!!! Do not plug off the air line from the
air pump. Air pump damage and premature
catalytic converter damage will occur.
STEP 4