Installation and Conversion Instructions

911 (991)
10 / 21 ENU

0913

0

911 GT2 RS Manthey Performance Kit
Vehicle Type:

911 GT2 RS

Model Year:

As of 2018 up to 2019

Cause:

Retrofitting

Figure 1
Note:

The Manthey Performance Kit for the 911 GT2 RS (type 991.2 ⇒ Figure 1) was developed in close cooperation between the Porsche Development Center Weissach and Manthey Racing GmbH.
Thanks to perfectly matched chassis aerodynamics and brake components approved for use on roads, along
with the lightweight GT2 RS magnesium wheels, it was possible to reconcile the breath-taking performance
of the 991 GT2 RS with even greater precision to meet the demands of track days and leisure travel.
The Tequipment range is aimed at the target group of motor sports enthusiasts and amateur motor sports
drivers.
The following areas on the vehicle will be converted:
•
•

Chassis (new spring struts, new brake pads (NOT for USA) and brake lines and new magnesium
complete wheels, incl. wheel covers on rear-axle wheels)
Body (new carbon underbody panel (front), new air control elements on front apron and underbody, new
rear diffusor, conversion of trunk lid with new rear wing and gurney)

Tequipment

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Installation and Conversion Instructions

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NOTICE
•

The components have been tested and approved together. Installing of individual components contrary to the approved
scope is not permitted or approved!

Parts Info:

991.044.805.00

⇒ 911 GT2 RS Manthey Performance Kit – set, vehicle WITH lift
system (474)
⇒ 911 GT2 RS Manthey Performance Kit – set, vehicle WITHOUT
lift system (–474)

991.044.805.01

Parts to be ordered separately:
WHT.008.186
991.609.181.80
999.067.053.09
991.609.185.00
PAF.008.923
999.084.123.09
PAF.008.550.00
PAF.008.674

4x
2x
4x
2x
12x
4x
2x
2x

999.084.445.01

2x

9A7.007.483.00
PAF.008.243
999.073.509.02
999.085.051.03
999.073.510.02
000.043.305.38

4x
2x
4x
4x
6x
1x

⇒ M12x 1.5x 62 screws for front brake calliper
⇒ Front brake pad wear indicator
⇒ M12x 1.5x 85 screws for rear brake calliper
⇒ Rear brake pad wear indicator
⇒ Lock nut for securing dome bearing to body
⇒ Collar nut securing connecting link (anti-roll bar)
⇒ Lock nut securing damper strut support bearing to piston rod
⇒ Hexagon-head bolt for connecting lower trailing arm to wheel
bearing housing
⇒ Lock nut for connecting lower trailing arm to wheel bearing
housing
⇒ External hexalobular screw for connecting seat frame to body
⇒ Screws for hook on rear lid
⇒ M6x 12 screws securing wings to wing support
⇒ M6 nuts securing wing to wing support
⇒ M6x 25 screws for securing wing support to trunk lid
⇒ Adhesive

Suspension alignment: Intermediate plates may be required for adjusting the camber values on the rear
axle. Order the required intermediate plates accordingly:
9F1.505.184.A
9F1.505.184.B
9F1.505.184.C
9F1.505.184.D
9F1.505.184.F

2x
2x
2x
2x
2x

Also order the following stickers:
95B.010.004
1x
7PP.010.786.T
1x

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⇒ Intermediate plate, 0.5 mm
⇒ Intermediate plate, 1 mm
⇒ Intermediate plate, 2 mm
⇒ Intermediate plate, 4 mm
⇒ Intermediate plate, 0.3 mm

⇒ Vehicle identification number (VIN) sticker, engine code
⇒ “MOBIL 1” engine oil sticker

Tequipment

Installation and Conversion Instructions

911 (991)
10 / 21 ENU

0913

0

If not yet available: ALSO order the required wheel set at the same time:
991.044.613.16

1x

991.044.613.37

1x

991.044.613.38

1x

991.044.613.39

1x

991.044.613.40

1x

⇒ 20-/21-inch GT2 RS magnesium wheel set, rim: Aurum (satingloss)
⇒ 20-/21-inch GT2 RS magnesium wheel set, rim: Black (satingloss)
⇒ 20-/21-inch GT2 RS magnesium wheel set, rim: Platinum
(satin-gloss)
⇒ 20-/21-inch GT2 RS magnesium wheel set, rim: White Gold
Metallic (satin-gloss)
⇒ 20-/21-inch GT2 RS magnesium wheel set, rim: Brilliant Silver

Information
Further overviews of the parts are shown before each relevant step.

Information
Please pass all this information on to the customer.
Also hand the race track booklet included with the parts over to the customer.
Content:

•
•
•
•
•
•
•
•
•
•
•

1. Preliminary work
2. Chassis assembly
3. Installation of new brake pads and brake lines
4. Mounting of front carbon underbody panel
5. Mounting of the flaps on the front apron
6. Mounting the air control elements on the underbody
7. Mounting rear underbody panel (diffuser)
8. Installation of trunk lid and rear wing
9. Installation of rear wheel covers
10. Installation of additional water tank for charge-air cooler
11. Performing suspension alignment

Assembly:
Information
Please note the procedure and preliminary work required for painting the rear lid. ⇒ Installation and
Conversion Instructions '090800 Preliminary work/Painting MR rear lid'

Information
•

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.

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Installation and Conversion Instructions

NOTICE
Vehicle and driver weight
•

Before starting the alignment, please ensure the following conditions are met:

Þ
⇒

Fuel tank is completely full

Þ
⇒

Driver's weight (incl. helmet and racing suit) has been determined or enquired about and is placed on the driver's seat
with an equivalent weight
1

Preliminary work

NOTICE
Painting components
•

Risk of warping of components

•

Risk of damage to components

Þ
⇒

Observe the guidelines and instructions for painting components in the Paint Manual.

Þ
⇒

Always place parts without tension on the painting devices provided during painting and drying processes.

2

1.1

Paint the new carbon trunk lid in accordance with the vehicle color code in the workshop
manual.

1.2

Connect battery charger. ⇒ Workshop Manual '090800 Battery trickle charge'

Chassis assembly. Leave all four wheels removed as described in the Chassis section.

Figure 2
– Kit with 4 dampers/springs/dome bearings including PASM decommissioning kit with a lift —
991.044.806.31

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Tequipment

Installation and Conversion Instructions

911 (991)
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– Kit with 4 dampers/springs/dome bearings including PASM decommissioning kit without a lift
— 991.044.806.34
Þ Figure 2 -1- – Shock absorber front axle with a lift — 991.044.806.32 without a lift —
⇒
991.044.806.35
Þ Figure 2 -2- – Shock absorbers, rear axle — 991.044.806.33
⇒
Þ Figure 2 -3- – PASM decommissioning kit
⇒
2.1

Remove all four wheels. ⇒ Workshop Manual '090800 Removing and installing wheel with
central bolt'

2.2

Remove front spring strut. ⇒ Workshop Manual '090800 Removing and installing front spring
strut'

2.3

Convert the front axle lift system if installed ⇒ Workshop Manual '090800 Disassembling and
assembling front spring strut'; otherwise, continue with Step 2.4

2.4

Convert the front suspension struts with the lift system.

1.

Figure 3
– Carefully mount the lift unit on the housing of the new shock absorber. Push the lift
unit up to the collar on the damper housing (end stop). Align the connection of the
Þ Figure 3 -Arrow and line-. Do
lift unit with the holes in the bottom of the housing ⇒
not use force during assembly! Never hit the upper edge of the lift unit (seal) with a
hammer.

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2.

3.

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Installation and Conversion Instructions

Figure 4
– Remove the adjustment wheel for the rebound adjustment from the new damper unit
Þ Figure 4 -1- and the fastening nut ⇒
Þ Figure 4 -2- of the damper housing. Do not
⇒
Þ Figure 4 -3- of the adjusting wheel. Only loosen
completely remove the grub screw ⇒
it. Otherwise, it may get lost!

Figure 5
– Insert the spring package consisting of the helper spring, intermediate ring and main
spring into the damper unit as shown in the picture. The spring package is always
mounted with the helper spring at the top (on the upper spring plate).

Tequipment

Installation and Conversion Instructions

4.

5.

911 (991)
10 / 21 ENU

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Figure 6
– All four components must be installed in the order shown! If necessary, the
arrangement must be corrected! The grooves in the 4 mm (0.16 in) thick wheel spacer
Þ Figure 6 -1- must point downwards (in the direction of the rebound adjustment).
⇒

Figure 7
Þ Figure
– Mount the strut housing. Make sure that the white plastic disc in the lift unit ⇒
7 -1- is positioned almost centrally. Otherwise, it may become damaged during
assembly! To assemble, set up the damper unit with the piston rod pointing upwards
and assemble the housing from above!

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6.

7.

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Installation and Conversion Instructions

Figure 8
– Push the housing onto the damper unit until the thread of the piston rod protrudes
Þ Figure 8 -1- from the housing. To check that it is correctly
approx. 10 mm (0.40 in)⇒
positioned, apply slight pressure to the housing and turn the piston rod by approx.
180° left/right with a suitable open-end wrench. It is possible that the piston rod has
not yet snapped into place in the seat of the housing.

Figure 9
Þ Figure
– If the piston rod is correctly locked in place in the housing, the fastening nut ⇒
9 -1-can be assembled. Hold the housing under slight pressure to prevent the piston
rod from accidentally slipping out of its seat in the housing. Coat the thread with
Loctite 246 (medium strength). Hexagon nut Tightening torque 50 Nm (36.90 ft-lb)

Tequipment

Installation and Conversion Instructions

7.1

8.

911 (991)
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Figure 9.1
– Please note that the damper clamping tool for spring struts with lift must be used in
Step 7.

Figure 10
Þ Figure 10 -1- onto the adjusting shaft and tighten the
– Push the adjusting wheel ⇒
Þ Figure 10 -2-. Make sure that the end of the adjusting shaft is flush with
grub screw ⇒
the adjusting wheel. Failure to observe this will lead to functional restrictions of the
rebound adjustment. Grub screw Tightening torque 2.5 Nm (1.80ft-lb)

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2.5

Install front spring strut. ⇒ Workshop Manual '090800 Removing and installing front spring
strut'

9.

10.

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Installation and Conversion Instructions

Figure 11
Þ Figure 11 -1-) starting from the
– Camber adjusting plate on the support bearing (⇒
outer stop (minimum camber) is in position as shown ⇒ Figure 11. Tighten the four
screws on the camber adjusting plate. Screw: Tightening torque 25 Nm (18.40 ft-lb)

Figure 12
Þ Figure 12 -1- in the dome into
– Place the support bearing over the elongated holes ⇒
the center position (picture is different). Fasten the support bearings to the dome with
three new collar nuts. Collar nut Tightening torque 33 Nm (24.34 ft-lb)

Tequipment

Installation and Conversion Instructions

11.

12.