122-D2L3T-01

Installation and Conversion Instructions
911 (997)
5/05
ENU
2601
2
Sport Exhaust System (XLF)
Revision:
This bulletin replaces Group 2, #5/05, dated April 17, 2009.
Model Year:
As of 2005 up to 2008
Concern:
Retrofitting
Engine Types:
M96/05 = 3.6 ltr. and M97/01 = 3.8 ltr.
Information:
In the new sport exhaust system, the signal for activating the flaps in the rear mufflers does not come
from the vehicle speedometer as before, but from the respective current map in the DME control unit.
This depends on the driving status and the accelerator pedal position among other things.
Sport exhaust system control:
•
•
Vehicles with Sport Chrono package (I-no. 639/640): → Switch console with “Sport” button
(see Owner's Manual)
Vehicles without Sport Chrono package: → New switch console with additional "Double
tailpipe" button
The regulating time after pressing the button, determined by the response time of the pneumatics, is
approx. 1 - 2 seconds.
Figure 1
Engine power and exhaust behavior of the vehicle are not affected. The sport exhaust system is also
available straight from the factory by requesting optional equipment no. "XLF"!
Tequipment
Dec 6, 2019
Page 1 of 17
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DRAFT
911 (997)
2601
ENU
Installation and Conversion Instructions
5/05
In the “Double tailpipe” button, the display (diode lights up) for the activated (clearly perceptible exhaust
motor noise) or deactivated sport exhaust system has been changed as follows as of model year '06.
Model year '05:
Diode lights up in "Sport" button: Sport exhaust system is active.
The diode in the "Twin tailpipe" button lights up: Sport exhaust system is not active.
The diode also flashes in the "Twin tailpipe" button to indicate the regulating status of the flaps in the rear
mufflers.
As of model year '06:
Diode lights up in the "Sport" (I-no. 639/640) and "Twin tailpipe" buttons: Sport exhaust system is active.
Parts Info:
997.044.200.02
 Sport exhaust system, set
ONLY for vehicles WITHOUT Sport Chrono package (639/640):
997.613.129.00 FMH
 Sport exhaust system button, vehicles WITHOUT Porsche Active
Suspension Management (PASM – I-no. 475)
 Sport exhaust system button, vehicles WITH PASM (475)
997.613.131.00 FMH
Parts List:
Figure 2
Dec 6, 2019
Page 2 of 17
997.111.611.02
1x
Rear muffler, right, complete (cylinder bank 1–3)  Figure 2 -A-
997.111.612.02
1x
Rear muffler, left, complete (cylinder bank 4–6)  Figure 2 -B-
997.111.982.20
1x
Left tailpipe (cylinder bank 4–6)  Figure 2 -C-
997.111.981.20
1x
Right tailpipe (cylinder bank 1–3)  Figure 2 -D-
996.111.989.00
1x
Change-over valve holder  Figure 2 -E-
999.181.295.40
2x
Hose (encased in steel); approx. 700 mm long  Figure 2 -F-
999.512.361.02
4x
Hose clamp, ∅ 6 x 7 mm  Figure 2 -G-
Tequipment
DRAFT
Installation and Conversion Instructions
999.591.746.02
4x
911 (997)
5/05
ENU
2601
Hose clip, 7.0 - 9.0  Figure 2 -H-
928.573.727.03
2x
Distributing piece, 3-way (Y-piece)  Figure 2 -I-
928.574.717.03
1x
Protective tube; bent  Figure 2 -K-
997.111.520.00
2x
Clamping sleeve, ∅ 55 x 75 (not shown)
900.380.005.09
10 x
M8 hexagon nut, self-locking (not shown)
999.181.374.40
1x
Tekalan line, 4 x 1 x 250 (not shown)
999.181.424.40
1x
Tekalan line, 4 x 1 x 800 (not shown)
999.181.401.40
1x
Tekalan line, 4 x 1 x 580 (not shown)
———
2x
Tie-wrap, 3.5 x 75 mm (not shown)
997.612.905.01
1x
Electrical system components, consisting of:
———
1x
Change-over valve  Figure 2 -L-
———
4x
Wire harnesses (not shown)
———
12 x
Tie-wrap (not shown)
Spare Parts:
996.605.123.01
1x
Electric change-over valve  Figure 2 -L-
Materials:
000.043.204.82
1x
Adhesive compound
———
1x
Commercially available rust solvent, e.g. WD40
———
1x
Wrapping tape
———
2x
Auxiliary line (Tekalan or Teflon hose) approx. 1,500 mm long
Information:
2
Identifying features when installed
The rear mufflers are marked on the outside as follows:
Left rear muffler (for cylinder bank 4–6): Porsche logo;
code 997/20 and Part No.: 997.111.612.02 ( Figure 3
-bottom inset-);
Right rear muffler (for cylinder bank 1–3): Porsche logo;
code 997/19 and Part No.: 997.111.611.02.
Both identification codes can be read using a mirror, for
example.
Left tailpipe: Porsche logo and Part No.:
997.111.982.20 ( Figure 3 -top inset-);
Right tailpipe: Porsche logo and Part No.:
997.111.981.20.
Please also provide your sales department with this information and give the customer a copy of the first three
pages of this Technical Information.
Tequipment
Figure 3
Dec 6, 2019
Page 3 of 17
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911 (997)
2601
Tools:
ENU
DRAFT
Installation and Conversion Instructions
5/05
Socket-wrench insert a/f 4/5/6/7/10/13/17
Torx wrench insert T20/T30
Slotted and Philips screwdrivers
Plastic wedge
Internal polygon wrench, a/f 8
Shop light
Hot-air gun
9900 - PIWIS Tester 3
VAS 1978/35-33 - Release Tool Set
VAS 1978/14A - Hot-Air Blower
VAS 1978/1A - Crimping pliers
Work
Procedure:
1
Preparatory work
1.1
Drive vehicle onto the lifting platform.
1.2
Disconnect the battery  Workshop Manual '2706IN Work instructions after disconnecting
the battery' and raise the vehicle  Workshop Manual '4X00IN01 Lifting the vehicle'.
CAUTION
Hot components
•
Risk of burns

Let hot components cool down.

Wear personal protective gear.
1.3
Dec 6, 2019
Page 4 of 17
Remove both rear mufflers and exhaust tailpipes.  Workshop Manual '263319 Removing
and installing rear silencer - section on "Removing"'
Tequipment
DRAFT
Installation and Conversion Instructions
1.4
911 (997)
5/05
ENU
2601
2
Get the two new rear mufflers for the sport
exhaust system ready for installation.
The description here relates only to the right
rear muffler!
A
B
C
D
E
F
–
–
–
–
–
–
Stop-chock holder
Hose clip, 7.0 - 9.0
Hose (encased in steel)
Hose clamp, ∅ 6 x 7 mm
Tekalan line, 4 x 1 x 250
Hose clamp, ∅ 6 x 7 mm
1.4.1
Remove stop-chock holder (
Figure 4 -A-) from old rear muffler
and fit it on the new rear muffler
using new M8 hexagon nuts (2 x).
Tightening torque 23 Nm
(17 ftlb.)
1.4.2
Figure 4
Clip in hose clip (7.0 - 9.0; 1 x 
Figure 4 -B-) on the web plate bearing (small) of the stop-chock holder (see inset,
 Figure 4 ).
1.4.3
Connect hose (encased in steel; 1 x  Figure 4 -C-) to the connection nipple on the
vacuum unit and secure with a hose clamp (∅ 6 x 7 mm; 1 x  Figure 4 -D-).
1.4.4
Clip hose (encased in steel;  Figure 4 -C-) into the hose clip (7.0 - 9.0,  Figure 4
-B-) on the web plate bearing (small).
1.4.5
ONLY for right rear muffler:
Insert Tekalan line (4 x 1 x 250; 1 x;  Figure 4 -E-) at least 15 mm deep into the
hose (encased in steel).
1.4.6
ONLY for left rear muffler:
Insert Tekalan line (4 x 1 x 800) at least 15 mm deep into the hose (encased in
steel).
1.4.7
Secure hose (encased in steel;  Figure 4 -C-) and Tekalan line (4 x 1 x 250, 
Figure 4 -E-) with a hose clamp ( Figure 4 -F-).
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911 (997)
2601
ENU
1.5
5/05
Installation and Conversion Instructions
Clip hose clip (7.0 x 9.0) in at the top of both
rear muffler holders at the engine side (right
side of engine [cylinder bank 4–6], see 
Figure 5 -A-).
A
2
DRAFT
– Rear muffler holder, right (cylinder
bank 4–6)
1.6
Lower the vehicle and open engine
compartment lid.
1.7
Remove air cleaner housing completely 
Workshop Manual '242519 Removing and
installing air cleaner housing - section on
"Removing"'.
Figure 5
Install electric switch-over valve.
A
B
C
D
–
–
–
–
Holder
Change-over valve
Y-piece
Protective tube, bent
2.1
Clip in holder ( Figure 6 -A-) at the
change-over valve ( Figure 6 -B-).
2.2
Fit Y-piece (1 x  Figure 6 -C-) and bent
protective tube ( Figure 6 -D-) on the
change-over valve as required.
2.3
Remove hexagon-head bolt for Pentosin
reservoir support from intake distributor for
cylinders 4–6.
Information
Observe installation position of electric
Figure 6
switch-over valve!
For vertical installation, the 2-pin connector for the switch-over valve can no longer be
plugged in or becomes chafed at the body.
2.4
Dec 6, 2019
Page 6 of 17
Position holder with change-over valve at an angle of approx. 55° and fit together with the
support for the reservoir on the intake distributor for cylinders 4–6 ( Figure 6 -bottom-).
Tightening torque 9.7 Nm (7.5 ftlb.)
Tequipment
DRAFT
Installation and Conversion Instructions
3
911 (997)
5/05
ENU
2601
2
Install the two new rear mufflers for the sport exhaust
system and the exhaust tailpipes.
A
3.1
– Auxiliary line
Route auxiliary lines for installing rear
mufflers.
Information
Auxiliary lines (Tekalan or Teflon) are
used as an aid for routing the lines
from the vacuum unit (rear muffler)
to the electric switch-over valve.
Route auxiliary lines as follows:
3.1.1
Auxiliary line ( Figure 7 -A-) for
right rear muffler:
Underneath hydraulic oil filler
Figure 7
neck → above air-conditioning
compressor → underneath fuel collection pipe (cylinders 4–6) → between intake
pipe supports for cylinder 4 and 5 → rear muffler holder, right.
3.1.2
Auxiliary line for left rear muffler:
Underneath hydraulic oil filler neck → underneath throttle housing (electronic
throttle adjuster) → intake-air distributor for cylinders 1–3 → rear muffler holder,
left.
3.2
Lift the vehicle and position new clamping sleeves (∅ 55 x 75, 2 x) on the catalytic
converters.
3.3
Position both new rear mufflers (left/right) under the vehicle at the left/right according to
their installation position.
3.4
Secure auxiliary lines that are hanging down to the rear muffler vacuum lines with adhesive
tape, for example.
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Page 7 of 17
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DRAFT
911 (997)
2601
ENU
Installation and Conversion Instructions
5/05
3.5
Position rear muffler on the rear muffler
holder at the engine side ( Figure 8 -A-)
with the help of a second person, who
must pull the auxiliary lines into the engine
compartment at the same time, and pre-fit
loosely using new M8 hexagon nuts (3 x).
A
B
C
D
–
–
–
–
Rear muffler holder
Hose (encased in steel)
Hose clip, 7.0 - 9.0
Tie-wrap
Figure 8
CAUTION
Risk of damage to lines and/or hoses (vacuum)
•
due to incorrect routing.

Maintain a sufficient distance from components exposed to high temperatures while driving.

Avoid making tight bends.
Dec 6, 2019
Page 8 of 17
3.6
Clip hose (encased in steel;  Figure 8 -B-) into the hose clip (7.0 - 9.0;  Figure 8 -C-) and
secure it to the rear muffler holder at the engine side using a tie-wrap ( Figure 8 -D-).
3.7
Fully tighten rear muffler on the holder at the engine side.
Tightening torque 23 Nm (17 ftlb.)
3.8
Tighten clamping sleeve (2 x) on rear muffler/catalytic converter.
Tightening torque 23 Nm (17 ftlb.)
3.9
Fit both new exhaust tailpipes (at the left/right).
3.9.1
Loosen M8 hexagon-head bolt on the exhaust tailpipes.
3.9.2
Fit exhaust tailpipe onto the exhaust pipes of the relevant muffler.
3.9.3
Tighten clamp on exhaust tailpipe hand-tight and align the exhaust tailpipe with the
cut-out in the rear apron.
3.9.4
Tighten clamp on exhaust tailpipe fully.
Tightening torque 30 Nm (22 ftlb.)
Tequipment
DRAFT
Installation and Conversion Instructions
4
911 (997)
5/05
ENU
2601
2
Route and connect remaining Tekalan lines.
4.1
Guide lines of both rear mufflers to the Y-piece on the electric change-over valve.
4.2
Mark the length you need plus 10–20 mm on the lines and shorten lines if necessary.
4.3
Insert lines at least 10 mm into the free connection nipples of the Y-piece.
Information
Figure 9, Item A shows the standard routing.
4.4
Pull Tekalan line ( Figure 9 -A1-) for the
electric change-over valve (resonance tube)
with the protective tube ( Figure 9 -A2-)
until it emerges out of the T-piece ( Figure
9 -A3-; vacuum pump line for engine/brake
booster).
A
B
C
4.5
– Vacuum line for engine/brake
booster (standard)
– Y-piece for sport exhaust system
vacuum line
– Line routing for sport exhaust
system change-over valve
Replace protective tube with Y-piece and
insert it into the T-piece of the vacuum pump
line for the engine/brake booster in such
a way that one connection nipple is facing
forwards (in direction of travel) and one
connection nipple is facing backwards (
Figure 9 -B-).
Figure 9
4.6
Push vacuum pump line for engine/brake booster at least 10 mm into the forward-facing
connection nipple of the Y-piece.
4.7
Push Tekalan line (4 x 1 x 580) at least 10 mm deep in the rear-facing connection nipple (
Figure 9 -B-) and route it to the electric change-over valve as follows:
Intake distributor (cylinders 1–3) → underneath throttle valve (electronic throttle adjuster) →
underneath Pentosin supply tank → protective hose on electric change-over valve ( Figure
9 -C-).
WARNING
Risk of short circuit and fire
•
due to work on the vehicle electrical system.

When working on the electrical system, the battery must always be disconnected and covered.

Always route the electrical wires without tension and so that no chafing occurs and secure to existing
wires/components with tie-wraps/electrical tape.
Tequipment
Dec 6, 2019
Page 9 of 17
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DRAFT
911 (997)
2601
ENU
5
Route electric line for change-over valve to DME control unit and connect it.
5.1
5.2
Preparatory work.
5.1.1
ONLY for vehicles with Bose Surround sound system (I-no. 680):
Remove subwoofer  Workshop Manual '913619 Removing and installing
subwoofer - section on "Removing"'.
5.1.2
Remove rear side trim panels  Workshop Manual '707519 Removing and
installing rear side trim panel - section on "Removing"'.
5.1.3
Remove belt fittings for rear three-point belts  Workshop Manual '691219
Removing and installing rear three-point belt - section on "Removing"' and rear
seat-belt buckles  Workshop Manual '692519 Removing and installing rear
seat-belt buckle - section on "Removing"'.
5.1.4
Expose DME control unit  Workshop Manual '247019 Removing and installing
DME control unit – section on "Removing"'.
Route electric wire harness from switch-over
valve to the DME control module.
A
B
C
– 2-pin plug connection
– Cable clip
– Electric wire harness
5.2.1
Connect 2-pin plug connection
( Figure 10 -A-) to electric
change-over valve and clip in cable
clip ( Figure 10 -B-) on refrigerant
line flange.
5.2.2
Make a hole in the grommet (
Figure 10 -inset-) in the passenger
compartment end plate (right
engine compartment).
5.2.3
Secure end of electric wire harness
(with 2-pin connector) to an auxiliary
line (Teflon or Tekalan) using
adhesive tape.
5.2.4
Dec 6, 2019
Page 10 of 17
Installation and Conversion Instructions
5/05
Figure 10
Route electric wire harness ( Figure 10 -C-) from the engine compartment
through the grommet into the passenger compartment to the DME control unit.
Tequipment
DRAFT
Installation and Conversion Instructions
5.3
911 (997)
5/05
ENU
2601
2
Connect electric wire harness.
5.3.1
Release connectors A and C for the
DME control unit.
5.3.2
Insert line 5625 (MY '05) or 5631
(as of MY '06); GY/GN; 0.52 into
connector C; chamber 14 (sport
exhaust system valve).
5.3.3
Cut off existing line 5359; RD/BU;
1.02 in connector A; chamber 8
(terminal 87) approx. 5 cm behind
connector A.
Figure 11
Strip the ends of both lines 5359; RD/BU; 1.02 and 9132; RD/BU; 0.52 (retrofit kit)
and slide shrink-fit hose over line 5359; RD/BU; 1.02 on the connector side.
Bundle the ends of lines 5359; RD/BU; 1.02 and 9132; RD/BU; 0.52 (retrofit kit)
and crimp them together as a splice with line 5359; RD/BU; 1.52 on the connector
side and a cable connection.
Slide shrink-fit hose over the splice and shrink the hose to make it water-tight with a
hot-air gun.
6
5.3.4
Use tie-wraps or wrapping tape to secure electric line to existing lines or
components without tension and so that no chafing occurs.
5.3.5
Seal grommet in passenger compartment end plate with adhesive compound.
ONLY for vehicles without Sport Chrono package
(I-no. 639/640):
Installing switch console with "Double tailpipe" button
A
B
6.1
– Button; vehicles WITHOUT PASM (475):
997.613.129.00.FMH
– Button; vehicles WITH PASM (475):
997.613.130.00.FMH
Preparatory work.
6.1.1
Remove center console cover at
the left/right  Workshop Manual
Figure 12
'681419 Removing and installing
centre console cover - section on "Removing"' and remove air-conditioning system
regulator  Workshop Manual '870219 Removing and installing air-conditioning
system regulator - section on "Removing"'.
6.1.2
Remove shift-lever knob with shift-lever boot  Workshop Manual '340419
Removing and installing shift-lever knob – section on "Removing"' and front center
console cover.
Tequipment
Dec 6, 2019
Page 11 of 17
2
911 (997)
2601
ENU
6.2
5/05
DRAFT
Installation and Conversion Instructions
6.1.3
Loosen center console completely  Workshop Manual '681719 Removing and
installing centre console - section on "Removing"', but do not remove it!
6.1.4
Remove oddments tray  Workshop Manual '681619 Removing and installing
oddments tray - section on "Removing"' and switch console close to the center
console  Workshop Manual '962719 Removing and installing switch console section on "Removing"'.
6.1.5
Loosen fuse box  Workshop Manual '978409 Loosening and securing fuse box section on "Loosening"',
and remove left inner door sill trim  Workshop Manual '680519 Removing and
installing inner door sill trim - section on "Removing"',
main headlight switch  Workshop Manual '940519 Removing and installing main
headlight switch - section on "Removing"'
and trim panel under dashboard  Workshop Manual '701919 Removing and
installing trim panel under dashboard - section on "Removing"'.
Connect electric wire harness to DME control
unit
ONLY for model year '05 vehicles ( Figure
13 ):
A
– Connector for sport exhaust system
button
X2_1 – B-pillar connection point
C
– Connector C, DME control unit
D
– Connector D, DME control unit
6.2.1
6.2.2
Insert line 9726; BU/BU; 0.52 in
connector D; chamber 6 (sport
exhaust system button).
Figure 13
Cut off existing line 5625; GY/GN; 0.52 in connector C; chamber 14 (sport exhaust
system valve, see also Step 5.3.2) approx. 5 cm behind connector C.
Strip the ends of both lines 5625; GY/GN; 0.52 and 9727; GY/GN; 0.52 (retrofit kit)
and slide shrink-fit hose over line 5625; GY/GN; 0.52 on the connector side.
Bundle the ends of lines 5625; GY/GN; 0.52 and 9727; GY/GN; 0.52 (retrofit kit)
and crimp them together as a splice with line 5625; GY/GN; 0.52 on the connector
side and a cable connection.
Slide shrink-fit hose over the splice and shrink the hose to make it water-tight with a
hot-air gun.
Dec 6, 2019
Page 12 of 17
Tequipment
DRAFT
Installation and Conversion Instructions
6.3
911 (997)
5/05
ENU
2601
2
Connect electric wire harness to DME control
unit
ONLY for vehicles as of model year '06
( Figure 14 ):
A
– Connector for sport exhaust system
button
X2_1 – B-pillar connection point
D
– Connector D, DME control unit
6.3.1
Insert line 9726; BU/BU; 0.52 in
connector D; chamber 6 (sport
exhaust system button).
6.3.2
Insert line 9727; GY/GN; 0.52 in connector D; chamber 17 (diode for sport
Figure 14
exhaust system).
6.4
Route electric wire harness to the center console and connect it.
6.4.1
Wrap adhesive tape around line 9726; BU/BU; 0.52 and line 9727; GY/GN; 0.52.
6.4.2
Route both lines along the electric
wire harness as follows:
DME control unit (for Coupé, see 
Figure 15 -A-) → junction for rear
seat floorpan assembly → left side
panel → left B-pillar ( Figure 15
-B-).
A
B
6.4.3
– DME control unit (for
Coupé)
– B-pillar connection point
Plug pin contacts of both lines into
2-pin connector as follows:
Line 9727; GY/GN; 0.52 in
chamber 1 (button LED)
Line 9726; BU/BU; 0.52 in chamber
2 (button signal)
Figure 15
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Dec 6, 2019
Page 13 of 17
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DRAFT
911 (997)
2601
ENU
Installation and Conversion Instructions
5/05
6.4.4
Connect 2-pin plug connection for
connection point X2_1 (left B-pillar).
A
B
– Pin connector socket
– Plug socket
Make sure the line colors match in
the plug socket and pin connector
socket!
Chamber 1: GY/GN; 0.52; lines:
9727 (pin connector socket; 
Figure 16 -A-) and 9740 (plug
socket;  Figure 16 -B-)
Chamber 2: BU/BU; 0.52; lines:
9726 (pin connector socket) and
9741 (plug socket)
Figure 16
6.4.5
Route lines 9740; GY/GN; 0.52 and 9741; BU/BU; 0.5 from the B-pillar to the
switch console in the center console area as follows:
Connection point X2_1 (left B-pillar) → door sill → A-pillar → underneath
dashboard, above support frame (along standard wire harness) → lower slot in
center console
6.4.6
Open secondary lock on 16-pin connector for the new switch module including
“sport exhaust system” symbol and insert socket contacts of the lines (No. 9741
and No. 9740) into the 16-pin plug socket as follows:
Line 9740; GY/GN; 0.52 in chamber A11 (button LED)
Line 9741; BU/BU; 0.52 in chamber A10 (button signal)
Close secondary lock on 16-pin connector.
6.4.7
6.5
Dec 6, 2019
Page 14 of 17
Use tie-wraps or wrapping tape to secure electric line to existing lines or
components without tension and so that no chafing occurs.
Concluding work for installing button for sport exhaust system
6.5.1
Install trim panels for both B-pillars  Workshop Manual '706719 Removing and
installing B-pillar trim panel'.
6.5.2
Install trim panel under dashboard  Workshop Manual '701919 Removing and
installing trim panel under dashboard - section on "Installing"',
main headlight switch  Workshop Manual '940519 Removing and installing main
headlight switch - section on "Installing"',
left inner door sill trim  Workshop Manual '680519 Removing and installing inner
door sill trim - section on "Installing"' and fuse box  Workshop Manual '978409
Loosening and securing fuse box - section on "Securing"'.
Tequipment
DRAFT
Installation and Conversion Instructions
7
911 (997)
5/05
ENU
2601
2
6.5.3
Install new button for sport exhaust system (997.613.129.00 FMH or
997.613.130.00 FMH; depending on vehicle equipment [with or without PASM
– I-no. 475]) in the center console area  Workshop Manual '962719 Removing
and installing switch console - section on "Installing"' and install oddments tray 
Workshop Manual '681619 Removing and installing oddments tray - section on
"Installing"'.
6.5.4
Completely install center console  Workshop Manual '681719 Removing and
installing centre console - section on "Installing"',
front center console cover and shift-lever knob with shift lever boot  Workshop
Manual '340419 Removing and installing shift-lever knob - section on "Installing"'.
6.5.5
Install air-conditioning system regulator  Workshop Manual '870219 Removing
and installing air-conditioning system regulator – section on "Installing"' and center
console cover at the left/right  Workshop Manual '681419 Removing and
installing centre console cover – section on "Installing"'.
Concluding work and function test.
7.1
7.2
7.3
Install trim panels in back seat area.
7.1.1
Connect plug connections to the DME control unit, then install DME control unit and
secure trim panels  Workshop Manual '247019 Removing and installing DME
control unit - section on "Installing"'.
7.1.2
Install belt fittings for rear three-point belts  Workshop Manual '691219
Removing and installing rear three-point belt - section on "Installing"' and rear
seat-belt buckles  Workshop Manual '692519 Removing and installing rear
seat-belt buckle - section on "Installing"'.
Tightening torque for both: 50 ± 5 Nm (37 ± 3.5 ftlb.)
7.1.3
Install rear side trim panels  Workshop Manual '707519 Removing and installing
rear side trim panel - section on "Installing"'.
7.1.4
ONLY for vehicles with Bose Surround Sound System (I-no. 680):
Install subwoofer  Workshop Manual '913619 Removing and installing
subwoofer - section on "Installing"'.
Read out fault memory and erase it if necessary.
7.2.1
Connect a battery charger and 9900 - PIWIS Tester 3 to the vehicle.
7.2.2
Read out the fault memories of all control units and delete any faults that are
present.
7.2.3
9900 - PIWIS Tester 3 and battery charger must now be disconnected.
Carry out a function test on the “sport exhaust system”.
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911 (997)
2601
ENU
5/05
7.3.1
DRAFT
Installation and Conversion Instructions
Start the vehicle.
Depending on the vehicle status, the “sport exhaust system” is activated for 2 to
3 seconds because there is no vacuum at the rear mufflers. The exhaust flaps are
open and the exhaust motor noise can be heard clearly.
As the vacuum at the rear mufflers increases, the exhaust flaps close and the
exhaust motor noise eases off. The “sport exhaust system” is not active.
ONLY for model year '05 vehicles:
The diode in the "Sport" button (Sport Chrono package: I-no. 639/640) does not
light up when you start the vehicle! However, the diode in the "Twin tailpipe" button
(sport exhaust system: I-no. XLF) lights up.
ONLY for vehicles as of model year '06:
The diode in both buttons ("Sport" and "Twin tailpipe") does not light up when you
start the vehicle!
7.3.2
Press “Sport” or “Double tailpipe” button.
After a regulating phase of around 2 to 3 seconds, the exhaust flaps open and the
exhaust motor noise can be heard clearly. The “sport exhaust system” is active!
ONLY for model year '05 vehicles:
The diode in the "Sport" button lights up!
However, the diode in the "Twin tailpipe" button (sport exhaust system: I-no. XLF)
does not light up! Furthermore, the diode flashes to indicate the regulating status
of the flaps in the rear mufflers.
ONLY for vehicles as of model year '06:
The diode in both buttons ("Sport" and "Twin tailpipe") lights up!
In any event, the correct function of the sport exhaust system can also be checked
by getting a second person to perform a visual inspection of the regulating
movement (linkage at the exhaust flaps).
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DRAFT
Installation and Conversion Instructions
911 (997)
5/05
ENU
2601
2
26 01 31 03:
–Sport exhaust system (1 x) retrofitted–
Includes:
Removing both standard rear mufflers and installing new rear
mufflers with exhaust flaps;
fitting and connecting electric change-over valve;
routing pneumatic control line for exhaust flaps.
Performing function test on sport exhaust system.
Without:
Installing switch console with "Sport exhaust system" button
Labor time: 380 TU
96 27 23 50:
–Switch console with Sport exhaust system button (1 x) retrofitted–
Includes:
Removing and installing switch console;
routing and connecting line from switch console with "Sport
exhaust system" button to DME control unit.
Without:
Performing function test on switch console with "Sport exhaust
system" button.
Included in separate LO No.
Labor time: 150 TU
Important Notice: Technical Bulletins issued by Porsche Cars North America, Inc. are intended only for use by professional automotive technicians who have attended Porsche service training
courses. They are written to inform those technicians of conditions that may occur on some Porsche vehicles, or to provide information that could assist in the proper servicing of a vehicle. Porsche special
tools may be necessary in order to perform certain operations identified in these bulletins. Use of tools and procedures other than those Porsche recommends in these bulletins may be detrimental to the
safe operation of your vehicle, and may endanger the people working on it. Properly trained Porsche technicians have the equipment, tools, safety instructions, and know-how to do the job properly and
safely. Part numbers listed in these bulletins are for reference only. The work procedures updated electronically in the Porsche PIWIS diagnostic and testing device take precedence and, in the event of a
discrepancy, the work procedures in the PIWIS Tester are the ones that must be followed.
© 2019 Porsche Cars North America, Inc.
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