Speed Density Motorsports is proud to offer a 991 Porsche RSR, we call it the “SDM 991 RSR”. This is a concept car and while we haven’t produced one, we are fully capable of manufacturing one.
Below are all the specifications. Can be produced to meet LMGTE certifications or other race cert if necessary.

4.0L Mezger “True dry sump oil system” 500HP
Electronic “Fly by wire throttle”
4 Valves per cylinder
Custom Titanium headers and full exhaust
Mid mounted engine “In front of gearbox”

100% electronically controlled gearbox
PDK 7 Speed Gearbox, built by ZF (Can be arranged to remove 7th gear to meet LMGTE regulations)
Electronically controlled dual wet clutches between engine and gearbox
7 Forward gears (Can be arranged to remove 7th gear to meet LMGTE regulations)
1 Reverse gear
Clutch pack LSD
Fully Traction control via ECM (MOTEC)

Estimated 2950lbs
Wheelbase 2540mm

Double wishbone front and rear suspension
Ohlins race coilovers
Antiroll bars with adjustable pins

Lithium ion race battery
Power mirrors
Drink system (24hr race session)
Air conditioning
Heated front windshield
Motec 15 pin center dash panel
Motec M170 ECU
Custom gearbox ECU

Carbon fiber roof
Carbon fiber hood
Carbon fiber rear deck lid
GT3 lightweight rear glass
Custom carbon rear wing with custom Billet Swan neck mounts
Full electric activated fire suppression system controlled ECU
FT3 fuel cell
Rear carbon splitter
Front carbon splitter
Carbon brake cooling ducts
Yellow headlights (LMGTE regulation)
4 Post air lift system

Independent front and rear brake systems
Adjustable front and rear braking bias
Optional Bosch M5 ABS unit
6 Piston Front caliper
410mmx36mm Front steel rotor
4 Piston Rear calipers
390mmx32 Rear steel rotor

Rims and Tires
Once piece forged wheels
18×12.5 Front wheels
18×13 Rear wheel
Michelin 30/68R18 Front tire
Michelin 31/71R18 Rear tire

Price tag: SDM 991 RSR $549,300
This is a fully functioning street car with a 17 digit VIN. Vehicle can be registered and driven on the street in the USA. All complete with headlights, hi-lo, turn signals, tail lights and brake lights. If you are outside the USA, you will be responsible for registering the vehicle in your country. We will assist with shipping outside the USA.

Speed Density Motorsports is not affiliated with Porsche AG in any way.
Speed Density Motorsports is not affiliated with Porsche Motorsports in any way

Serious inquires please email sales@speeddensitymotorsports.com

Sign up to for latest news at SDM!

You have successfully subscribed to the newsletter

There was an error while trying to send your request. Please try again.

will use the information you provide on this form to be in touch with you and to provide updates and marketing.