Owners manual
GP219S HEADER INSTRUCTIONS
CAUTION! Gloves or other protection should be worn to protect installer from burns due to hot exhaust components!
COSMETIC TIP: Skin oils from your hands and engine compartment grime causes ugly “yellow” spots to appear on
the chrome as it “blues” from the exposure to exhaust heat. Disconnect positive battery cable. Then jack up vehicle and place it
on jack stands to support vehicle. DO NOT rely on a Jack stand or bottle jack.
Now disconnect Y-Pipe assembly removing it from both
exhaust manifolds and catalytic converter flange
connection. Also carefully disconnect and remove
Sensor plugs on Y-Pipe.
Now install driver side
GIBSON header and
gasket using stock
hardware. (Make sure to
remove stock EGR plug
out of manifold and
install it into Gibson
header using some anti-
seizes!) Torque header to
30 to 35 fts. Now install,
dipstick back on vehicle.
Start on passanger side its
highly recommended to
remove the inner-fender
well to access the manifold.
Loosen and set aside the
transmission dipstick.
Now install Gibson Header
and supplied gasket.
Torgquing header to 30 to 35
fts torque.
Re-Install Y-pipe assembly
torque all fasteners to 30 to
35 fts torque. Then connect
or sensor back in. Then start
vehicle and check for leaks.
Then after vehicle warms up
let it cool down and re-torque
all fasteners!
Starting on driver side remove
dipstick using 5/16 socket and
ratchet. Then remove stock
manifold using 13mm socket
and ratchet. Make sure to
clean head surface of all
debris before installation of
header.
Re-install fender wall if
removed. Use or Censored
safe silicone on catalytic
converter location if damaged
in removal.
Remove manifold and stock
gasket. Make sure to clean
head surface of all debris
before installation of header.