Banks Power GM Motorhomes: (Gas ’01 - 10 8.1L Workhorse) PowerPack &Stinger systems '00-07 Class-A MH, W-series - Manual (Page 9)

the crossover pipe and muffler
inlet pipe are fully seated into
the slip joints of the muffler.
Tighten the 3-inch clamps.
33.
For a left-side exit
tailpipe insert the 3 1 ⁄
2
” end of
the tailpipe into the outlet of
the muffler.
For a right-side exit tailpipe
remove the factory frame
mounted hanger used to
support the rear of the right-
side muffler and install it
inboard of the frame rail
through the holes in the
frame rail approximately 3
inches in front of the frame
cross member (see Figure
9 ).
If a factory installed tail pipe
hanger is installed in these
holes remove the hanger.
Install the supplied frame
mounted tailpipe hanger
outboard of the frame rail
adjacent to the relocated
frame mounted hanger using
its studs and nuts. Route
the tail pipe up and over the
driveshaft. Insert the tailpipe
hanger into the relocated
rubber hanger. Slide the 3
1 ⁄
2
”
end of the tailpipe into the
outlet of the muffler.
34.
Slide the tailpipe
extension onto the tailpipe,
without installing the clamps.
Level the tailpipe extension
to the vehicle. The tailpipe
extension should be 1
1 ⁄
2
to 2 1 ⁄
2
-inches below the bottom of
the vehicle body. If the pipe is
more than 2
1 ⁄
2
-inches below
the body, trim the tailpipe
at the slip joint to raise the
tailpipe extension. Make sure
to trim the tail pipe and not
the extension. Also, be sure
to leave at least 3.5-inches of
straight on the tailpipe at the
slip joint so it can be correctly
inserted into the slip of the
extension.
35.
With the proper height
established, install the 4-inch
clamp over the tailpipe
extension slip joint and snug
up the clamp. Do not tighten
completely at this time incase
more adjustment is required.
36.
Level the tailpipe
extension with the vehicle
and place the 4-inch universal
hanger clamp onto the
extension pipe. Determine
which hole in the hanger
strap should be inserted
over the stud on the frame
mounted tailpipe hanger and
place the strap onto the stud.
Using the
3 ⁄
8
” SaE washer
and crimplock nut provided
secure the hanger strap to the
frame mounted hanger. Slide
the 4-inch hanger clamp on
the extension pipe until the
hanger strap is square to the
extension pipe. Lightly tighten
the clamp. See Figure
10 .
37.
Check the extension
pipe to ensure it is level and
the gap between it and the
body is correct. If not loosen
the connections and adjust
accordingly. Once pipe is
level and at the correct height
tighten all clamps. Install a
3
1 ⁄
2
” clamp on the outlet of
the muffler. Make sure the
Figure 10
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