No. 25-22

Installation and Conversion Instructions
911 (992)
25/22
ENU
0913
0
911 GT3 Manthey Performance Kit
Vehicle Type:
911 GT3
Model Year:
As of 2021
Cause:
Retrofitting
Notice:
The Manthey Performance Kit for the 911 GT3 RS (type 992) was developed in close collaboration
between the Porsche Development Center in Weissach and Manthey Racing GmbH.
The Tequipment range is targeted to motor sports enthusiasts and amateur motor sports drivers.
NOTICE
•
The individual components of the 911 GT3 Manthey Performance Kit are precisely matched. For this
reason, they must only be installed together on the vehicle. Individual offers are shown separately.
Part Nos.:
992.044.855.00
911 GT3 (type 992) Manthey Performance Kit
For vehicles with a front axle lift system (order no. 2UH) and a
20/21-inch Manthey lightweight wheel set
911 GT3 (type 992) Manthey Performance Kit
For vehicles without a front axle lift system (order no. 2UH) and with
a 20/21-inch Manthey lightweight wheel set
911 GT3 (type 992) Manthey Performance Kit
For vehicles with a front axle lift system (order no. 2UH) and a
20/21-inch GT3 wheel set
911 GT3 (type 992) Manthey Performance Kit
For vehicles without a front axle lift system (order no. 2UH) and with
a 20/21-inch GT3 wheel set
992.044.855.01
992.044.855.02
992.044.855.03
Parts to be ordered separately:
PAF.108.749
8x
 Hexagon flange bolt, M8 x 42, for upper axle guide
N 102.723.02
2x
 Hexagon collar nut, M10, for connecting rod
N 107.847.02
2x
 Hexagon flange bolt, M12 x 1.5 x 85, for lower axle guide
PAF.003.923
12 x
 Hexagon nut, M8, for upper strut bearing
WHT.004.985
2x
9A7.008.677.00
2x
PAF.909.664
2x
 Hexagon shoulder nut, M14 x 1.5, for front shock absorber
piston rod
 Hexagon-head bolt, M12 x 1.5 x 80, for lower rear shock
absorber
 Hexagon collar nut, M12 x 1.5, for lower rear shock absorber
Tequipment
Mar 9, 2023
Page 1 of 29
0
911 (992)
0913
ENU
Installation and Conversion Instructions
25/22
9A7.007.755.00
2x
 Cheese head bolt securing seat belt to seat
9A7.007.483.00
4x
 Outside hexagon round-head bolt, M10 x 28, to seat rail
PAF.910.423
2x
PAF.100.829
3x
 Inside hexagon round/pan-head screw, M6 x 16, for rear
diffusor
 Hexagon-head bolt, M6 x 16, for rear diffusor
PAF.104.513
2x
 Cheese head bolt with multiple-tooth head, M12 x 1.5 x 55
PAF.912.572
6x
 Hexagon flange bolt M8 x 22
PAF.908.088
2x
 Hexagon flange bolt, M12 x 1.5
Suspension alignment: Intermediate plates may be required for adjusting the camber values
on the front axle. Order the required intermediate plates accordingly:
9F1.401.443.H
2x
 Intermediate plate, 2.0 mm
NOTICE
Vehicle and driver weight
•
Before starting the alignment, please ensure the following conditions are met:

Fuel tank is completely full

Driver's weight (incl. helmet and racing suit) has been determined or requested and is placed on the
driver's seat with an equivalent weight
Information
Please pass all this information on to the customer.
In addition, provide the customer with the Race Circuit brochure included with the scope of parts.
Information
Content:
Mar 9, 2023
Page 2 of 29
•
Some of the repair illustrations show only one side of the vehicle or a similar component.
•
Naturally, some steps also have to be performed on the opposite side of the vehicle as well.
•
•
•
•
•
•
•
•
•
•
1. Preparatory work
2. Installing the door entry guards
3. Installing the door projectors
4. Chassis assembly
5. Installing brake lines
6. Installing front spoiler
7. Mounting of the flaps on the front apron
8. Installing the air control elements on the underbody
9. Installing rear diffusor
10. Installing rear wing
Tequipment
Installation and Conversion Instructions
Assembly:
•
•
•
•
•
11.
12.
13.
14.
15.
1
Preparatory work
1.1
2
25/22
ENU
0913
0
Installing rear wheel covers
Affixing stickers
Concluding work
Performing suspension alignment
Only for race track use: Installing towing loops
Connect a battery charger.  Workshop Manual '2X00IN Battery trickle charge'
Installing the door entry guards
Set
1
– Door entry guards (left and right) 992.044.856.17
– Door entry guard
2.1
Remove  1 -1- door entry guard. 
Workshop Manual '680719 Removing and
installing cover moulding'
2.2
Install illuminated door entry guard  1 -1-.
 Installation and Conversion Instructions
'680700 Door entry guard, illuminated ADY /
ATX'
3
911 (992)
1
Installing the door projectors
Set
– Door projectors (left and right) 992.044.856.16
3.1
Remove door warning light.  Workshop
Manual '961619 Remove and install door
warning light'
3.2
Remove door panel.  Workshop Manual
'705919 Remove and install front door panel'
3.3
Install new door projector  3 -1-.
Ensure correct installation position and
engagement.
3.4
2
Connect electric plug connection  3 -3-.
The electric plug connection must engage perceptibly.
Tequipment
Mar 9, 2023
Page 3 of 29
0
911 (992)
0913
ENU
Installation and Conversion Instructions
25/22
3.5
Install the door panel  3 -2-.  Workshop
Manual '705919 Remove and install front
door panel'
1
2
3
– Door projector
– Door panel
– Electric plug connection
3
WARNING
Preloaded or pressurized components
•
Risk of pinching or bruising

Do not reach into the danger area.

Relieve the tension on components before starting work.

Secure components to prevent them from loosening suddenly.
4
Chassis assembly
Leave all four wheels removed as described in the Chassis section.
4
Kit with front axle lift system – Kit with 4 dampers / springs / strut bearings including PASM deactivation kit - 992.044.856.10
Mar 9, 2023
Page 4 of 29
Tequipment
Installation and Conversion Instructions
911 (992)
25/22
ENU
0913
0
Kit without front axle lift – 4 dampers / springs / strut bearings including PASM deactivation kit 992.044.856.13
1
– Front-axle spring strut without front axle lift - 992.044.856.14 (LH) /
992.044.856.34 (RH)
2
– Front-axle spring strut with front axle lift - 992.044.856.11 (LH) / 992.044.856.31 (RH)
3
– Rear-axle spring strut - 992.044.856.12 (LH) / 992.044.856.32 (RH)
4
– Tie-rod end - 992.044.856.30
5
– PASM decommissioning kit
4.1
Remove all four wheels.  Workshop Manual '440519 Removing and installing wheel with
central bolt'
4.2
Replace original tie-rod ends with tie-rod ends  4 -4-.  Workshop Manual '488119
Remove and install tie-rod ball'
There is no need to replace the tie-rod ends if the chassis package without aerodynamic components is installed.
4.3
Removing front spring strut.  Workshop Manual '408519 Removing and installing front
spring strut'
4.4
Disassembling front spring strut
4.4.1
Disassembling spring strut.  Workshop Manual '408537 Disassembling and
assembling front spring strut'
4.4.2
Remove front axle lift
Only for vehicles with front axle lift system.
The tool for the lock nut supplied with the kit must be used!
4.4.3
Remove height-adjusting nut  5 -2- and lock nut  5 -3-.
4.4.4
Screw the front axle lift  5 -4- up until the dust boot detaches  5 -1- and
remove dust boot  5 -1-.
4.4.5
Remove front axle lift  5 -4- and
lock nut  5 -5- from the spring
strut  5 -6- (use open-ended
spanner 700 17 171 and
open-ended spanner 700 17 184).
1
2
3
4
5
6
4.5
–
–
–
–
–
–
Dust boot
Height-adjusting nut
Lock nut
Front axle lift system
Lock nut
Spring strut
Assembling new front spring strut with front axle lift
4.5.1
5
Mount lock nut  6 -17- and lift system  6 -16- on the spring strut  6 -12-.
Do not tighten to the specified torque yet.
Tequipment
Mar 9, 2023
Page 5 of 29
0
911 (992)
0913
ENU
Installation and Conversion Instructions
25/22
4.5.2
Install plastic cap  6 -15- on the shock absorber housing (use impact sleeve 700
17 169 and a plastic hammer).
4.5.3
Push spring plate  6 -9-, coil spring  6 -8-, intermediate ring  6 -7- and
helper spring  6 -6- onto the piston rod.
Then mount the bellows  4.5.4.
Install rubber stop  6 -3- and supporting mount  6 -2- on the piston rod and
tighten nut  6 -1- (use special tool KW 685 10 179).
Ensure that the rubber stop  6 -3- is installed correctly: Pointed tapered end
must be facing upwards as shown  6. Tightening torque 40 Nm (29.5 ftlb.)
1
2
3
4
4.1
4.2
5
6
7
8
9
12
15
16
17
4.5.4
Mar 9, 2023
Page 6 of 29
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
6
Nuts
Supporting mount - 65A.49.376 (LH) / 65A.49.377 (RH)
Rubber stop
Bellows
Mounting ring on bellows
Upper spring plate
Upper ring on bellows
Auxiliary spring
Intermediate ring
Coil spring
Lower spring plate (install with a distance of 10 mm from the lift system)
Spring strut
Plastic cap
Lift system (carried over from standard chassis)
Lock nut
Mounting bellows:
Check the type of bellows. Different types are available: with and without retaining
ring.
Tequipment
Installation and Conversion Instructions
911 (992)
25/22
ENU
0913
0
Installing bellows mounting ring: Secure lift unit to prevent turning by fully screwing
down lower spring plate  6 -9- and securing with grub screw. Tightening
torque 1 Nm (0.7 ftlb.)
Tighten mounting ring for bellows  6 -4.1- (use hook spanner 685 11 296),
countering at lower spring plate  6 -9- (use hook spanner 685 11 295).
Tightening torque 15 Nm (11.1 ftlb.)
Install bellows mounting ring  6 -4.1- at short end of the bellows  6 -4-, install
upper spring plate  6 -4.2- on bellows  6 -4- and secure with upper bellows
ring  6 -5-.
The bellows  6 -4- is clipped onto the plastic cap when the spring strut is
completely installed.
4.6
Assembling new front spring strut without front axle lift
Information
The new front spring strut without front axle lift comes pre-mounted. The assembly
instructions are provided for the sake of completeness.
4.6.1
Install spacers  7 -14- on the piston rod.
Install components  7 -9-2- on piston rod and tighten nut  7 -1- (use special
tool KW 685 10 179).
Medium-strength Loctite must be used. Tightening torque 40 Nm (29.5
ftlb.)
1
2
3
4
–
–
–
–
7
Nuts
Supporting mount - 65A.49.376 (LH) / 65A.49.377 (RH)
Rubber stop
Bellows
Tequipment
Mar 9, 2023
Page 7 of 29
0
911 (992)
0913
ENU
Installation and Conversion Instructions
25/22
5
6
7
8
9
13
14
4.7
–
–
–
–
–
–
–
Upper spring plate
Auxiliary spring
Intermediate ring
Coil spring
Spring plate, lower
Spring strut
Spacers
Adjust the relevant dimension X.
On vehicles with a lift system, ensure that the
lift system line is aligned with the center of the
damping force adjustment wheel (A).
1
2
3
– Front axle with front axle lift
– Front axle without front axle lift
– Rear axle
8
Mar 9, 2023
Page 8 of 29
Front axle with front axle lift
Dimension A
Lower edge of spring seat to shoulder of lift unit
10 mm
Front axle with front axle lift
Dimension X
Lower edge of lift unit lock nut to shoulder of
shock absorber-valve foot
103 mm
Front axle without front axle lift
Dimension X
Lower edge of spring seat to shoulder of
damper-valve foot
110 mm
Rear axle
Dimension X
Lower edge of spring seat to shoulder of
damper-valve foot
96 mm
4.8
Tighten spring plate grub screws.
Tightening torque 1 Nm (0.7 ftlb.)
4.9
Only for spring strut with lift system: Tighten lift system lock nut (use open-ended spanner
700 17 171 and open-ended spanner 700 17 184).
Tightening torque 66 Nm (48.7 ftlb.)
Tequipment
Installation and Conversion Instructions
4.10
911 (992)
25/22
ENU
0913
0
Install front spring strut.  Workshop Manual '408519 Removing and installing front spring
strut'
Ensure the lift system line is not twisted or under strain.
When installing the spring strut, slide the strut bearing plate in the body connection
as far as possible towards the outside of the vehicle.
4.11
Replacing rear spring strut
4.11.1
Remove rear spring strut.  Workshop Manual '427119 Removing and installing
spring strut, rear'
4.11.2
Check height dimension X and adjust if necessary.
4.11.3
4.12
Rear axle
Dimension X
Lower edge of spring seat to shoulder of
damper-valve foot
96 mm
Install rear spring strut.  Workshop Manual '427119 Removing and installing
spring strut, rear'
Do not complete the vehicle interior.
Installing front-axle deactivation set
Use a suitable pin removal tool to replace the
electric wiring harness.
1
2
3
4
5
6
–
–
–
–
–
–
Front axle resistors
Adhesive pads
Plug
Rear axle resistors
Adhesive pads
Cable tie
9
Tequipment
Mar 9, 2023
Page 9 of 29
0
911 (992)
0913
ENU
Installation and Conversion Instructions
25/22
4.12.1
Replacing both original wiring
harness connectors:
Release safety cap  10 -2- on
locking lugs  10 -5-.
Release connector  10 -4- lock
 10 -3-.
1
2
3
4
5
–
–
–
–
–
Electric lines
Locking cap
Plug
Fuse
Locking lugs
10
4.12.2
Release connector  11 -2- lock
 11 -1- and unpin electric lines 
11 -3-.
1
2
3
4.12.3
– Plug
– Fuse
– Electric lines
Remove safety cap  10 -2- (no
longer required).
11
4.12.4
Plug electric lines  12 -1- into
new connector  12 -2- and lock
fuse  12 -3-.
1
2
3
– Electric lines
– Plug
– Fuse
12
Mar 9, 2023
Page 10 of 29
Tequipment
Installation and Conversion Instructions
4.12.5
ENU
0913
0
–
–
–
–
New connector
Vehicle connector
Electric wiring harness
Resistance
13
Installing front-axle deactivation set
on the left vehicle side:
Connect new plug connection  14
-1- with plug connection  14 -2for vehicle.
Affix resistor  14 -4- on a level
surface using the supplied adhesive
pads.
Route the electric wire harness 
14 -3- without tension and secure
with a cable tie.
1
2
3
4
4.13
25/22
Installing front-axle deactivation set
on the right vehicle side:
Bring new connector  13 -1- into
contact with vehicle connector 
13 -2-.
Affix resistor  13 -4- on a level
surface using the supplied adhesive
pads.
Route the electric wire harness 
13 -3- without tension and secure
with a cable tie.
1
2
3
4
4.12.6
911 (992)
–
–
–
–
New connector
Vehicle connector
Electric wiring harness
Resistance
14
Installing rear-axle styling set
Tequipment
Mar 9, 2023
Page 11 of 29
0
911 (992)
0913
ENU
Installation and Conversion Instructions
25/22
4.13.1
4.14
Bring new connectors  15 -3- into
contact with vehicle connectors 
15 -4-.
Isolate wiring harness  15 -2from power supply and secure with
cable tie.
Affix resistors  15 -1- on a level
surface in the middle of the vehicle
using the supplied adhesive pads.
Complete vehicle interior.  Workshop
Manual '427119 Removing and installing rear
spring strut - “Subsequent work” section'
15
WARNING
Danger of injury and damage from brake fluid
•
Poisonous if swallowed
•
Irritation and damage to skin
•
Avoid contact with paint surfaces

Only store brake fluid in suitable, labelled containers

Wear protective gloves and goggles

In the event of contact (eyes or skin), wash immediately with water

In the event of contact with paint surfaces, wash off immediately with water - do not wipe off
5
Installing brake lines
1
5.1
– Brake line sections (steel braided), front axle
and rear axle - 992. 044. 856.15
Conversion of front axle area
Longer section is installed on the front axle.
5.1.1
Loosen threaded connections 
17 -2- and remove brake line  17
-1-.
5.1.2
Install new brake line  17 -1without tension and ensuring no
abrasion occurs.
5.1.3
Mar 9, 2023
Page 12 of 29
Tighten all threaded connections  17 -2-.
Tequipment
16
Installation and Conversion Instructions
911 (992)
25/22
ENU
0913
0
Tightening torque 10 Nm (7.4
ftlb.)
1
2
5.1.4
5.2
Clean adjacent components of any
brake fluid that may have leaked
out.
Conversion of rear axle area
5.2.1
5.2.2
Loosen brake line threaded
connection  18 -2- and remove
brake line  18 -1-.
5.2.3
6
17
Route the new brake line  18 -1in the same way as the standard
brake line and tighten the threaded
connection  18 -2-.
Tightening torque 10 Nm (7.4
ftlb.)
1
2
5.3
– Brake line
– Threaded connection
– Brake line
– Threaded connection
Clean adjacent components of any
brake fluid that may have leaked
out.
18
Bleed brake system.  Workshop Manual '470107 Bleeding brake system'
Installing front spoiler
1
– Front spoiler - 992.044.856.03
Mounting parts set: – Reinforcement plates with
screws - 9A7.007.517.00
19
Tequipment
Mar 9, 2023
Page 13 of 29
0
911 (992)
0913
ENU
Installation and Conversion Instructions
25/22
1
20
– Front spoiler reinforcement plate
6.1
Remove front spoiler.  Workshop Manual '66031925 Removing and installing front spoiler
(centre)'
6.2
Installing new front spoiler  19 -1-.  Workshop Manual '66031925 Removing and
installing front spoiler (centre)'
6.3
Remove screws  21 -1- (no longer needed).
1
– Screws
21
6.4
Install reinforcement plates  22 -3- on front
spoiler  22 -1- and secure with new screws
from the fastening parts set. Tightening
torque 3.2 Nm (2.4 ftlb.)
1
2
– Front spoiler
– Reinforcement plates
22
Mar 9, 2023
Page 14 of 29
Tequipment
Installation and Conversion Instructions
7
911 (992)
25/22
ENU
0913
0
Mounting of the flaps on the front apron
1
2
3
– Left flap - 992.044.856.01
– Right flap - 992.044.856.02
– Template - 992.044.856.00
23
7.1
Thoroughly clean surfaces to adhere in flap
area  24 -1- with isopropanol (alcohol). The
adhesive surfaces must be free from dust,
dirt and grease of any kind.
1
– Flap
24
7.2
Attach template  25 -1- using adhesive
strips to side surface of front apron.
Ensure that the template is correctly
aligned!
1
– Template
Information
Check for correct flap alignment. The
alignment cannot be corrected afterwards.
25
Tequipment
Mar 9, 2023
Page 15 of 29
0
911 (992)
0913
ENU
7.3
Remove protective film  26 -1- from flap,
align with the edge of the template  26 -2and press on firmly.
Press the flap firmly and against the front
apron for 10 seconds.
Use only the pre-affixed double-sided
adhesive tape!
1
2
7.4
8
Installation and Conversion Instructions
25/22
– Flap
– Template
Remove template  26 -2-.
Installation on the left side is performed in the
same way. Use the template reversed.
26
Mounting the air control elements on the underbody
1
– Left air-guide element - 992.044.856.05
2
– Right air-guide element - 992.044.856.06
Mounting parts set: – Screw - 999.073.297.A2
with hexagon nut - 999.076.071.02
8.1
Mount the respective air-guide element  28
-1- on the underbody cover  28 -4- with
underbody cover  28 -2- screws.
8.2
Transfer center air-guide element bore  28
-3- to underbody cover  28 -4-.
8.3
Remove air-guide element  28 -1-.
8.4
Remove underbody cover  28 -4-. 
Workshop Manual '519219 Removing and
installing front cover'
1
2
3
4
8.5
–
–
–
–
27
Air-guide element
Screw
Center bore on air-guide element
Underbody cover
Drill a ∅ 6.5 mm hole at the center bore
marking on the air-guide element.
28
Mar 9, 2023
Page 16 of 29
Tequipment
Installation and Conversion Instructions
8.6
3
9
25/22
ENU
0913
0
Mount air-guide element  29 -1- on the
underside of the underbody cover  29 -3using a new screw and nut  29 -2- from the
fastening parts set.
Tightening torque 10 Nm (7.4 ftlb.)
1
2
8.7
911 (992)
– Air-guide element
– Screw - 999.073.297.A2 with
hexagon nut - 999.076.071.02
– Underbody cover (removed)
Install underbody cover.  Workshop Manual
'519219 Removing and installing front cover'
29
Installing rear diffusor
1
9.1
– Rear diffusor - 992.044.856.04
Remove rear diffusor  31 -1-.  Workshop
Manual '66591925 Removing and installing
rear spoiler, lower part (diffuser)'
30
9.2
Install new rear diffusor  31 -1-. 
Workshop Manual '66591925 Removing and
installing rear spoiler, lower part (diffuser)'
1
– Rear diffusor
31
Tequipment
Mar 9, 2023
Page 17 of 29
0
911 (992)
0913
ENU
Installation and Conversion Instructions
25/22
10 Installing rear wing
1
– Rear wing - 992.044.856.07
32
10.1
Remove screws  33 -2- on rear wing  33
-1- and remove rear wing.
1
2
– Rear wing
– Screws
33
10.1.1
Installing rear wing support
1
10.1.2
– Rear wing support set
with mounting parts 992.044.856.26
Remove rear lid.  Workshop
Manual '55901925 Removing and
installing rear lid'
34
Mar 9, 2023
Page 18 of 29
Tequipment
Installation and Conversion Instructions
10.1.3
911 (992)
25/22
ENU
0913
0
Hold the support  35 -1- forward
and down  35 -Arrow- at the
wing support  35 -2- and mark
fastening point.
If the support cannot be
installed: Loosen wing supports,
move them to their original
position and tighten. 
Workshop Manual '66581923
Removing and installing rear
spoiler (wing plates)'
1
2
– Support
– Wing strut
35
10.1.4
Information
For body work:
•
Cover open components
•
Wear personal protective gear
•
Protect adjacent components from damage
Center punch marking, pre-drill at ∅ 2.5 mm and drill out to ∅ 5.0 mm.
10.1.5
De-burr bore hole and roughen the
contact surface on body  36 -1using sandpaper (240 grit).
36
Tequipment
Mar 9, 2023
Page 19 of 29
0
911 (992)
0913
ENU
25/22
10.1.6
Installation and Conversion Instructions
Roughen the supports in the
hatched areas  37 -1- with
sandpaper (240 grit).
37
10.1.7
Apply adhesive with Part No.
00004330538 to the support 
38 -1-.
38
10.1.8
Secure  39 -1- support with
rivets  39 -2-.
Remove excess adhesive.
10.1.9
Install rear lid.  Workshop Manual
'55901925 Removing and installing
rear lid'
39
Mar 9, 2023
Page 20 of 29
Tequipment
Installation and Conversion Instructions
10.2
25/22
ENU
0913
0
Install new rear wing  40 -1- and
hand-tighten screws  40 -2-.
Tightening torque 8 Nm (5.9 ftlb.)
1
2
10.3
911 (992)
– Rear wing
– Screws
The rear wing angle can be adjusted for race
track use. The wing position shown shows the
road driving setting.
Front screw  41 -1-: at the very bottom,
rear screw (screw with collar)  41 -2-: top.
40
Further settings can be found in the race
track brochure.
41
11 Installing rear wheel covers
1
2
– Wheel cover for Manthey lightweight
wheel - 992.044.856.08 / for GT3 wheel
- 992.044.856.09
– Manthey lightweight wheel / GT3 wheel
Wheel cover GT3 wheel 992.044.856.09
Rim protection sticker GT3 wheel 992.044.856.21
Manthey lightweight wheel cover 992.044..856.08
Manthey lightweight wheel rim protection sticker
992.044.856.27
11.1
Affixing decorative films on the wheel covers
Tequipment
42
Mar 9, 2023
Page 21 of 29
0
911 (992)
0913
ENU
Installation and Conversion Instructions
25/22
Information
The decorative films must also be ordered in the desired color.
These are available from 01/2023.
11.1.1
Thoroughly clean the surfaces to
adhere with isopropanol (alcohol).
The adhesive surfaces must be free
from dust, dirt and grease of any
kind.
Information
Check that the decorative film is
aligned correctly. The alignment
cannot be corrected afterwards.
11.1.2
43
Remove protective film from the respective decorative film  43 -2- and position
and affix it onto the wheel cover  43 -1-.
11.2
Installation of rear wheel covers on GT3 wheel
1
2
– Wheel cover 992.044.856.09
– GT3 wheel
11.2.1
Affixing rim protection sticker
Information
Both rear rims must be thoroughly
cleaned and freed from brake
debris.
11.2.2
Mar 9, 2023
Page 22 of 29
44
Thoroughly clean the surfaces to
adhere with isopropanol (alcohol). The adhesive surfaces must be free from dust,
dirt and grease of any kind.
Tequipment
Installation and Conversion Instructions
11.2.3
911 (992)
25/22
ENU
0913
0
Affix the rim protection stickers
 45 -1- to all rear wheel spokes.
Make sure to affix the side flaps of
the stickers carefully around the
spokes.
45
11.3
Mounting GT3 wheel cover
1
2
3
– Wheel cover
– Fastening ring
– Screws
11.3.1
Remove screws  44 -3- and
fastening ring  46 -2- from 
46 -1- wheel cover.
46
11.3.2
Insert wheel cover  47 -1- into
the wheel  47 -4- from the
front, hold fastening ring  47 -2against it from behind and tighten
screws  47 -3-.
Make sure that the wheel cover
is seated correctly in the rim
and is flush with the fastening
ring.
Tightening torque 6.8 Nm (5
ftlb.)
47
Tequipment
Mar 9, 2023
Page 23 of 29
0
911 (992)
0913
ENU
Installation and Conversion Instructions
25/22
11.4
Mounting rear wheel covers on the Manthey
lightweight wheel
1
2
– Wheel cover for Manthey lightweight
wheel - 992.044.856.08
– Manthey lightweight wheel
11.4.1
Affixing rim protection sticker
48
11.4.2
Thoroughly clean the surfaces to
adhere with isopropanol (alcohol).
The adhesive surfaces must be free
from dust, dirt and grease of any
kind.
49
11.5
Insert wheel cover  50 -1- into the rim 
50 -2- from the front and tighten screws 
50 -3-.
Make sure that the wheel cover is seated
correctly in the rim.
Tightening torque 4 Nm (3 ftlb.) and
Loctite 425 medium-strength screw lock.
1
2
3
– Wheel cover
– Wheel rim
– M5 x 12 pan-head screw
11.6
Important! Balance wheels after mounting
the wheel covers.  Workshop Manual
'440594 Balancing wheels'
11.7
Install all wheels.  Workshop Manual '440519 Removing and installing wheel with central
bolt'
12 Affixing stickers
Mar 9, 2023
Page 24 of 29
Tequipment
50
Installation and Conversion Instructions
911 (992)
25/22
ENU
0913
0
Information
The stickers are to be ordered in the color of the customer's choice (black or white).
12.1
Carefully remove GT3 logo and adhesive residue.
12.2
Thoroughly clean the surfaces to adhere with isopropanol (alcohol). The adhesive surfaces
must be free from dust, dirt and grease of any kind.
Information
The stickers can also be affixed wet. After removing the backing film, spray a little water or a
mixture of water and washing-up liquid onto the sticker and the surface to be affixed.
12.3
Remove backing sheet from the respective sticker, align the protective film on the sticker
flush at the front and bottom of the door and stick it on, then remove the protective film on
the sticker.
51
Tequipment
Mar 9, 2023
Page 25 of 29
0
911 (992)
0913
ENU
25/22
Installation and Conversion Instructions
52
53
13 Concluding work
13.1
Select the fault memory of all systems, work through any existing faults and erase the fault
memory.  Workshop Manual '033500 Fault memory for on-board diagnosis'
13.2
Disconnect the battery charger.  Workshop Manual '2X00IN Battery trickle charge'
14 Perform suspension alignment.
For more information, see: Instructions for the measuring wheel system.  Installation and
Conversion Instructions '440000 Measuring wheel system'
14.1
Mar 9, 2023
Page 26 of 29
Measuring criteria:
Tequipment
911 (992)
Installation and Conversion Instructions
•
•
25/22
0913
0
Tank capacity: Full
Driver ballast: Driver weight
Damper clicking Performance
Front axle
Rear axle
Rebound stage (R) LowSpeed (Black)
7
7
Rebound stage (R) HighSpeed (gold)
8
6
Pressure stage (C) LowSpeed (Black)
7
7
Pressure level (C) HighSpeed (Gold)
9
9
Center position =
medium
Center position =
medium
104.0 mm
247.0 mm
Front axle
Rear axle
Rebound stage (R) LowSpeed (Black)
9
10
Rebound stage (R) HighSpeed (gold)
9
12
Pressure stage (C) LowSpeed (Black)
10
10
Pressure level (C) HighSpeed (Gold)
10
11
Center position =
medium
Center position =
medium
104.0 mm
247.0 mm
Steel anti-roll bar
Ride height on tires
Damper clicking Comfort
Steel anti-roll bar
Ride height on tires
14.2
ENU
Measurement log:
Measurement log (executing PORSCHE dealer)
Wheel alignment values
(worldwide)
Initial readings
Setpoint values
Final
measurement
Front axle
Toe
unpressed (total)
- 2 mm
Camber
with wheels in straight-ahead
position
- 2.6°
Rear axle
Toe
per wheel
+ 2 mm
Camber
- 2.6°
Tequipment
Mar 9, 2023
Page 27 of 29
0
911 (992)
0913
ENU
25/22
Installation and Conversion Instructions
Installed on:
Mechanic:
Acceptance:
Stamp:
(Date)
(First Name)
(Name of
Foreman)
(Porsche dealer)
15 Installing towing loops
Information
The towing loops are not approved for use on public roads!
Race Track only.
1
2
3
4
5
15.1
–
–
–
–
–
Front towing loop
Rear towing loop
Small spacer
Medium spacer
Large spacer
Remove both towing hook covers (front and
rear).
54
Mar 9, 2023
Page 28 of 29
Tequipment
Installation and Conversion Instructions
15.2
911 (992)
25/22
ENU
0913
0
Screw the respecttive towing loop  54 -1,
2- into the device provided in order to check
the positions of the towing loop.
Illustration of towing loop  55 -1-not OK,
turned 180 º.
1
– Rear towing loop
55
15.3
Depending on position, install one or more of
the three supplied spacers  54 -3, 4, 5- on
the respective towing loop  54 -1, 2- and
screw in again.
The logo on the respective towing loop 
56 -1- must point straight upwards and the
hook-and-loop fastener must point towards
the vehicle.
1
– Front towing loop
56
Labor Time:
911 GT3 Manthey Performance Kit
Includes:
Installing 911 GT3 Manthey Performance Kit.
Labor time: 1200 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.
© 2023 Porsche Cars North America, Inc.
Tequipment
Mar 9, 2023
Page 29 of 29