Demon Speed
Experience the Demon Speed Difference: When it comes to motorsport, every advantage counts. Demon Speed Motorsports is committed to top-tier Porsche products so, whether you’re a seasoned racer or an aspiring track champion, Demon Speed Motorsports is your ultimate destination for Porsche Cup Car racing parts.
Discover the adrenaline rush that comes with uncompromising performance – explore our catalogue now and ignite your racing passion like never before.
Hold down wheel nut set for transportation.
Sold as a set for one car - (2 x Left, 2 x Right)
Fits:
Porsche 991 GT3 Cup with Centrelock wheels
Porsche 992 Cup with Centrelock wheels
Description
The body of the hold down is zinc and black coated and the stickers are color coded the same as the wheel washers to identify the left and right threads.
Similar to 9973616099A / 9973616109A and WHS001857 / WHS001858
Red - Left hand
Blue- Right hand
- Porsche 991 GT3 3.8L (475Bhp)
- Porsche 991 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp)
- Porsche 992 GT3 4.0L
- Porsche 992 GT3 RS 4.0L
Orderable 
.webp?width=197&height=148 "Restrictor plate kit. Porsche 997 Cup / Porsche 991 Cup - RPL-991")
Fits:
Porsche 997 GT3 Cup
Porsche 991 GT3 Cup
These restrictors mount over the front of the intake throttle body and under the intake boot.
Take Control with Our Restrictor Plate Kit
Harness the power of your vehicle with our Restrictor Plate Kit. It’s designed for the late 997 and 991 air filter system. These precision machined restrictors mount over the front of the intake throttle body and under the intake boot.
What’s Included in Your Purchase
Your purchase includes a set of 10 distinct restrictor plates. This array provides a variety of restriction options. Hence, you can fine-tune your vehicle’s horsepower to your exact needs. This ensures optimal performance for any scenario.
This includes a set of 10 plates that fit over the front of the throttle housing under the intake boot. Easy to install and easy to remove as needed.
Ideal for NASA GTS Preparations
Are you prepping for NASA GTS? Our Restrictor Plate Frame is the perfect tool for you. It allows precise horsepower calibration. Consequently, you can achieve your desired performance level each time. We’ve tested this plate frame on a 996 cup car with fantastic results. The horsepower reduced smoothly, and the air/fuel ratio remained unaffected.
Why Choose Our Restrictor Plate Kit
Our Restrictor Plates offers precise horsepower control. It’s a must-have for racing enthusiasts and those seeking to tailor their vehicle’s performance. Experience the difference of custom tuning with this reliable, efficient tool. Invest in our Restrictor Plates and experience the thrill of tailored performance today.
Fits all 997 Cup and all 991 Cup
- Porsche 997 MKII GT3 2010>>
- Porsche 991 GT3 3.8L (475Bhp)
- Porsche 991 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp)
Orderable
Sold each - 5 required per disc
Fits:
Porsche 991 GT3 Cup with Centrelock wheels
Porsche 992 Cup with Centrelock wheels
Description
Centerlock Wheel Drive Pin
These pins can wear over time and become damaged when changing wheels allowing more wheel movement than desired.
Similar to Porsche part number 991.341.705.8A and 9F1401111
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9F1401111
The product you are viewing cross references to these numbers
- Porsche 991 GT3 3.8L (475Bhp)
- Porsche 991 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp)
- Porsche 992 GT3 4.0L
- Porsche 992 GT3 RS 4.0L
Orderable
Sold each - 4 required per car (2 x Left, 2 x Right)
Fits:
Porsche 991 GT3 Cup with Centrelock wheels
Porsche 992 Cup with Centrelock wheels
Description
The body of the hold down is zinc and black coated and the stickers are color coded the same as the wheel washers to identify the left and right threads.
Similar to 9973616099A / 9973616109A and WHS001857 / WHS001858
Red - Left hand
Blue- Right hand
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
DSM-THTD-991
The product you are viewing cross references to these numbers
- Porsche 991 GT3 3.8L (475Bhp)
- Porsche 991 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp)
- Porsche 992 GT3 4.0L
- Porsche 992 GT3 RS 4.0L
Fits:
Porsche 991 GT3 Cup with Centrelock wheels
Porsche 992 Cup with Centrelock wheels
Description
A unique tool that drives the 991 / 992 wheel hold down nuts on with a 3/4″ drive.
Applies to the DSM hold down nuts and 9973616099A / 9973616109A and WHS001857 / WHS001858
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PMNA-THD-DT
The product you are viewing cross references to these numbers
- Porsche 991 GT3 3.8L (475Bhp)
- Porsche 991 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp)
- Porsche 992 GT3 4.0L
- Porsche 992 GT3 RS 4.0L
Orderable
Sold each
Fits:
Porsche GT3 Cup 997.2 with Centrelock wheels
Similar to Porsche Motorsports Part Number
9973611139A / 9973611139B
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
DL-WW-9972
The product you are viewing cross references to these numbers
- Porsche 997 MKII GT3 2010>>
Orderable
Sold each
Fits:
Porsche GT3 Cup 997.2 with Centrelock wheels
Similar to Porsche Motorsports Part Number
9973616759B
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
DSM-NUT-9972
The product you are viewing cross references to these numbers
- Porsche 997 MKII GT3 2010>>
Orderable
Sold each
Fits:
Porsche 997.2 Cup Cars with Centerlock Wheels
Made from High Strength 4140 Steel Alloy Heat Treated.
After wear and tear has taken its toll on the center bolt, the threads can become deformed. This is an item that should be changed frequently.
Similar to 997.331.571.9A
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
DSM-9972CLB
The product you are viewing cross references to these numbers
- Porsche 997 MKII GT3 2010>>
Orderable
Sold individually - Left and Right required
Fits:
Porsche 996 Turbo/GT2 2000-05
Porsche 996 GT3 2000-05
Porsche 997 Turbo/GT2 2007-2013
Porsche 997 GT3 2007-09
These engine mount triangles are a direct replacement for the ones used on the 996 and 997 GT3 Cup cars.
These are also perfect for having a solid mount for your GT3 or Turbo motor for your non-cup car, just add in our RSR Engine Blade to complete the combination.
Diagram Ref No 3 and 4
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
DSM-EMT
The product you are viewing cross references to these numbers
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 TURBO 2007>>
- Porsche 997 GT3 2007>>
- Porsche 997 GT2 2007>>
- Porsche 997 MKII Turbo 2009>>
Fits:
Porsche 991.1 Coupe - 2012 to 2016
High quality Lexan polycarbonate window.
CNC cut, formed and black out covering to match the original window.
OEM Hardcoat Finish
This window has the screw in 991.2 style retention pins, so replace your 991.1 windows with the problematic glue on pins.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
DSM-991QGW
The product you are viewing cross references to these numbers
- Porsche 991 Carrera C2 3.4L (350Bhp)
- Porsche 991 Carrera C2S 3.8L (400Bhp)
- Porsche 991 Carrera C4 3.4L (350Bhp)
- Porsche 991 Carrera C4S 3.8L (400Bhp)
- Porsche 991 Turbo 3.8L (520bhp)
- Porsche 991 Turbo S 3.8L (560Bhp)
- Porsche 991 GT3 3.8L (475Bhp)
- Porsche 991 GT3 RS 4.0L (500Bhp)
Fits:
Porsche 996 Turbo/GT2 2000-05
Porsche 996 GT3 2000-05
Porsche 997 Turbo/GT2 2007-2013
Porsche 997 GT3 2007-09
Demon Speed Motorsports is proud to introduce this RSR based engine mount plate designed for the turbo , GT3 and Cup cars.
Stronger than the original, this engine plate is a great alternative to the stamped steel factory engine plate which is prone to fatigue and failure.
Made from stainless steel with bolt on, high quality 7075 aluminium mountings
Click 'Zoom in' for large parts diagram.Diagram Ref No 1.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
DSM-EngMt
The product you are viewing cross references to these numbers
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 TURBO 2007>>
- Porsche 997 GT3 2007>>
- Porsche 997 GT2 2007>>
- Porsche 997 MKII Turbo 2009>>
Orderable
This package is to convert the entire 993.
Fits:
Porsche 993
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
- Porsche 997 MKII GT2 RS 2011>>
In stock
This package is for whole car. 4 sets Front & Rear
This includes the components needed to convert to Porsche Cup 996 and 997.1 style centerlock.
Fits:
Porsche 996, 997, 986, 987, Cayman
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005 -08/08
- Porsche Boxster 987 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-2012
- Porsche Boxster S 987 MKII 3.4L 2009-2012
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 Carrera 2 3.6L 2005>>
- Porsche 997 Carrera 2S 3.8L 2005>>
- Porsche 997 Carrera 4 3.6L 2005>>
- Porsche 997 Carrera 4S 3.8L 2005>>
- Porsche 997 TURBO 2007>>
- Porsche 997 GT3 2007>>
- Porsche 997 GT2 2007>>
- Porsche 997 MKII Carrera C2 3.6L 2009>>
- Porsche 997 MKII Carrera C4 3.6L 2009>>
- Porsche 997 MKII Carrera C2S 3.8L 2009>>
- Porsche 997 MKII Carrera C4S 3.8L 2009>>
- Porsche 997 MKII GT3 2010>>
- Porsche 997 MKII Turbo 2009>>
- Porsche 997 MKII GT2 RS 2011>>
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
In stock
Same great size and fit as the original that is no longer available.
Replaces 96434167570.
Fits:
Porsche 996/997 GT3 Cup 2000 - 2012
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
DSM-DL-LP
The product you are viewing cross references to these numbers
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 GT3 2007>>
- Porsche 997 MKII GT3 2010>>
In stock
Replaces factory part number 96434161480
Fits: Porsche 964 / 993 / 996 / 997
These pins can wear over time and become damaged when changing wheels allowing more wheel movement than desired.
Priced as each
Carry spares & replace them when changing axles!
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
DL-DP
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 Carrera 2 3.6L 2005>>
- Porsche 997 Carrera 2S 3.8L 2005>>
- Porsche 997 Carrera 4 3.6L 2005>>
- Porsche 997 Carrera 4S 3.8L 2005>>
- Porsche 997 TURBO 2007>>
- Porsche 997 GT3 2007>>
- Porsche 997 GT2 2007>>
In stock
Made from High Strength 4140 Steel Alloy Heat Treated.
After wear and tear has taken its toll on the center bolt, the threads can become deformed. This is an item that should be changed frequently.
The second and third pictures were taken of a used factory center bolt. These threads should be symetrical, but instead they are deformed 50% in the direction of the wheel nut. Deformed threads not only are a risk of failure, but they do not provide the same clamp load at the same torque as a non-damaged part.
Replaces factory part number 99633167190.
Fits: Porsche 996/997.1 Cup Cars with Centerlock Wheels
Sold Per Each.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
DL-CLB
The product you are viewing cross references to these numbers
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 GT3 2007>>
In stock
Custom replacement Front Brake Caliper Pad keeper bolts. Replace the factory bolts that spin in the aluminium calipers, making it very difficult to remove them without damaging your calipers.
These replacement bolts have a hex head for easy disassembly.
Sold as a Pair.
Fits: All Porsche 996, 997.1, 997.2 GT3 street and Cup Cars
Replaces factory part number 99735195930 and 99635195930
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
B-FCB
The product you are viewing cross references to these numbers
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 GT3 2007>>
- Porsche 997 MKII GT3 2010>>
In stock
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