INSTALLATION INSTRUCTIONS

INSTALLATION INSTRUCTIONS
DRAG SPECIALTIES
PYTHON STAGGERED DUALS FOR SOFTAIL
P/N 1800-1471
ATTENTION INSTALLER (if other than owner):
Please forward this Instruction Sheet to the purchaser
of this product. These instructions contain valuable
information necessary to the end user.
INTRODUCTION: These instructions describe the
procedure for properly installing the Python Staggered
Dual Exhaust for Softail models. Review these instructions
carefully before beginning, as they contain important
information. Please retain for future reference.
Particularly important information is distinguished in these
instructions by the following notations:
NOTE: A NOTE provides key information to make
procedures easier or clearer.
CAUTION: A CAUTION indicates special procedures that
must be followed to avoid damage to the motorcycle and/
or accessories.
WARNING!: A WARNING indicates special procedures
that must be followed to avoid injury to a motorcycle
operator or person inspecting or repairing the motorcycle.
TOOLS REQUIRED:
Snap-ring pliers
Flat blade screwdriver
#3 Phillips-head screwdriver
5/16” nut driver
3/8” ratchet, extensions
1/2” and 9/16” sockets
3/4” deep socket
1/2”, 9/16” and 14mm combination wrenches
3/16” and 5/16” Allen wrench
T45 and T50 Torx wrenches
PROCEDURE:
STOCK EXHAUST SYSTEM REMOVAL
1. Remove the seat, locate the rear O2 sensor connector and
unplug the sensor from the harness. Remove the battery
and feed the sensor cable end through the frame.
NOTE: Pay attention to wire routing for re-installation. Refer to
service manual for proper battery removal.
2. Unplug the front sensor (located behind the rectifier) from
harness and feed the end of the wire through the frame,
freeing it from the motorcycle.
3. On FLSTC, FLSTF and FLSTN (floorboard models), loosen
the right-hand floorboard mounting bolts to gain clearance
for exhaust removal and installation.
4. If equipped, unbolt the carriage bolt and clamp attached to
the bracket under the right-side transmission cover.
5. On FLSTF, FXS and FLSTN (foot peg models), you will need
to remove the right-side passenger foot peg and hangar, as
this is attached to the exhaust mount bracket. Replace the
passenger foot peg assembly using the 3/8” x 21/2” Allen
bolt (supplied).
6. Loosen the heat shield clamps on both front
and rear exhaust pipes.
NEW 1/2012
7. R
emove the two mounting
nuts from each headpipe,
located on the cylinder head.
8. R
emove the nuts attaching
the exhaust mount bracket to
the frame.
9. R
emove the entire exhaust
system and set it aside.
10. R
emove the two lower
mounting studs from the
frame using the 3/4” deep
socket (Figure 1).
11. If equipped, remove the bracket from under the right-side
transmission cover.
12. Using the 14mm wrench, carefully remove the O2 sensors
from the stock header and save them for reuse with the
new system.
13. C
arefully remove the exhaust port flanges and cir-clips
from the stock exhaust system using a snap-ring pliers.
NOTE: Replace bent or damaged cir-clips.
14. R
emove the stock exhaust gaskets and replace them
with the supplied exhaust gaskets.
NOTE: For replacement gaskets use
Drag Specialties #DS-173220 or equivalent.
PYTHON EXHAUST SYSTEM INSTALLATION
1. Remove the header
and heat shields
from the protective
packaging. Place each
heat shield on a nonabrasive surface such
as a blanket or carpet.
Using a felt-tip pen,
mark the outside edge
of each heat shield to show the location of the mounting
clips that the hose clamps will loop through (Figure 2).
3501 Kennedy Rd, PO Box 5222, Janesville, WI 53547-5222
P/N 1800-1471
Page 1 of 2
INSTALLATION INSTRUCTIONS
DRAG SPECIALTIES
PYTHON STAGGERED DUALS FOR SOFTAIL
P/N 1800-1471
PYTHON EXHAUST SYSTEM INSTALLATION (CONT)
2. Slide the header into
the heat shield’s tail end
first (Figure 3).
3. Install each hose clamp
by feeding the tail end
of the clamps into the
heat shield clips. Use #20
hose clamps (supplied)
on the headpipes and #28
hose clamps (supplied)
on the muffler sections. Take note of the location of the
clamp screw head direction (Figures 2 and 4). Screw head
must be accessible
when the system
is installed on the
motorcycle for
adjustment purposes.
Align the end tips
evenly and tighten
the hose clamps.
4. Apply a small
amount of anti-seize
compound to the
threads of the O2 sensors that were removed from the stock
headpipes and install them on the new headpipes.
NOTE: Install the O2 sensor with the gray connector (short) in
the front headpipe and the O2 sensor with the black connector
(long) into the rear headpipe. Be careful not to get anti-seize
on sensor tip, it may affect sensor function.
5. Install cir-clips and flanges
from the stock system onto
the new headpipe (Figure 5).
6. A
ttach the supplied mounting
bracket (stamped ‘330-P’)
by using the four 5/16” x
5/8” flange bolts and two
nut plates (supplied). Slide
the nut plates inside the brackets that are welded to the
backside of each muffler
(Figure 6). Leave the nuts
loose at this time. Use this
procedure for both upper
and lower muffler
mounting positions.
7. Install the complete assembly
into the exhaust ports (rear
port first). Use the stock
flange nuts, do not tighten at this time. Install the exhaust
bracket to the motorcycle frame rail using two 3/8” x 3/4”
flange bolts (supplied). Do not tighten at this time.
8. Tighten cylinder port exhaust flange nuts on the front
and rear cylinders. Now tighten the 5/16” x 5/8” flange
bolts (supplied) and the 3/8” x 3/4” flange bolts (supplied)
attaching the bracket to the frame.
9. Feed wire for the front O2 sensor through the frame and into
the plastic holder on the frame. Plug the sensor into the
stock wiring connector. Snap the plastic holder ‘closed’ to
hold the connector in place.
NEW 1/2012
10. F
eed the connector for the rear O2 sensor (black) through
the frame and under the seat. Re-install the battery; plug
the sensor into the stock wiring connector.
11. F
eed the connector for the rear O2 sensor (gray) through the
frame and into the holder on the frame. Plug the sensor into
the stock wiring connector.
12. O
n the models were equipped, re-tighten the floorboard
mounting bolts.
13. B
e sure to tighten all hardware before starting
the motorcycle.
14. A
fter the installation and before starting the motorcycle,
completely clean the pipes and mufflers with warm soapy
water and a clean soft cloth that will not leave a residue.
NOTE: Any residue, oil or fingerprints will stain the chrome
when the metal heats up.
HANDY HINTS:
1. W
hen installing a new set of chrome pipes, make sure your
hands are clean and free of oil. After installation, thoroughly
clean the pipes with warm soapy water and a soft cloth. Dry
with clean towel to remove any residue (chrome wax/polish,
glass cleaner, alcohol, ammonia, etc.) before starting
the motorcycle.
2. A
void long periods of idling as this can cause discoloration.
3. Intake leaks can cause the engine to run lean and overheat,
which could cause discoloration.
4. M
ake sure there are no exhaust leaks at the junction of the
exhaust pipes and cylinder head. We recommend replacing
gaskets if they are worn.
QUIET BAFFLE:
Quiet baffle P/N V21869 is available for this system. The quiet
baffle will lower the sound level by 2-3 dB on average. Contact
your local Drag Specialties dealer to order.
PLEASE NOTE:
Every effort is made by Python Exhaust Systems to provide
improved cornering clearance. However, due to design and
space limitations on some motorcycle models, ground and
cornering clearance may not be improved and in some
cases may be reduced. Be sure to follow proper
installation instructions.
WARNING!: Before operating the motorcycle, be sure all
hardware is tight.
3501 Kennedy Rd, PO Box 5222, Janesville, WI 53547-5222
P/N 1800-1471
Hardware Kit
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