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ManualsBrandsGibson Performance ManualsAutomotive9508 Cat-Back Dual Split Exhaust System
12
EXHAUST INSTALLATION #9508
When installing this exhaust system make sure to use proper safety precautions. Use jack stands
when under the truck, set parking brake, block tires and use safety glasses and gloves.
DO NOT WORK WITH HOT PIPES!
SUGGESTED TOOLS:
½” ,9/16” and 13 mm wrenches and sockets, WD-40, Hacksaw, Jack Stand
PASSENGER PASSENGER SIDE
DRIVERS SIDE
Lay out the exhaust on
the floor so it looks like
the drawing and
compare parts with
manual. To remove the
stock exhaust remove it
from the 2-bolt flange
located in front of the
muffler you will re-
use your stock
hardware. Leave all
rubber grommets in
place. Use WD-40 to aid
in removal of exhaust
and hangers. Use
hacksaw to cut tailpipe
off.
Install muffler #B onto
head pipe 1-1/2” to 2”
with the louvers facing
towards the converter.
Use a jack stand to
support the muffler. Use
hanger # F to the
secure the muffler to the
head pipe. Do not
tighten. hanger #F also
has a hanger welded to
it. Insert into rubber
grommets located above
muffler inlet.
Remove your factory
hanger located on the
passenger side. Next,
install metal hanger # H
Into slotted hole located
approximately 13” from
the rear of the frame.
Metal hangers are
mounted on the outside of
the frame. Use the
hardware that is provided.
The bolt and the washer
will go into the 3
rd
hole
from the top on the driver
side. On the passenger
side you will use the 4
th
hole from the top.
Install the drivers side
tailpipe # D into the
muffler at least 1-1/2” to
2”. This pipe will route
over the axle and
between the shock and
spare tire. Use clamp # G
to secure pipe to the
muffler. Do not tighten.
Install the passenger side
tailpipe # C into the
muffler at least 1-1/2” to
2”. Use clamp # G
to secure pipe to muffler.
Do not tighten.
Next, install exit pipes #
Install exit pipes # E
Use clamps # G to
secure exit pipes to
tailpipes. Next, install
you stainless tips. Now
go back and tighten all
clamps, nuts and bolts.
Start from the front
and work back. Use zip
ties for brake and fuel
lines.
MAKE SURE YOU HAVE A 1” CLEARANCE FROM ALL BRAKE
LINES, SHOCK BOOTS, TIRES, FUEL LINES, ETC…