Clutches / Flywheels

9m Lightweight flywheel billet steel - dual mass replacement

Fits:

Porsche 718 Boxster / Boxster T 2.0ltr - 2017 Onwards
Porsche 718 Boxster S / GTS 2.5ltr - 2017 Onwards
Porsche 718 Cayman / Cayman T 2.0ltr - 2017 - 2017 Onwards
Porsche 718 Cayman S / GTS 2.5ltr - 2017 Onwards

9m 718 2.0/2.5 Lightweight flywheel 

• CNC machined high carbon forged billet steel material
• 52% weight reduction (OEM flywheel 14.55kg vs 9m flywheel 6.95kg)
• Direct replacement
• Quicker acceleration
• Reduced rotating mass and less engine inertia
• Better throttle response
• OEM clutch compatible
• More power to the wheels

9m 718 Upgraded clutch kit 

• Higher thermal capacity compared to OEM friction material
• Higher transmittable torque compared to OEM
• Performance pressure plate giving higher transmittable torque and higher clamp load
• Capable of over 550Nm torque
• Sprung uprated organic center plate with OEM pedal feel
• Ideal upgrade for typically fast road/track day cars and everyday use

Related reference numbers
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9M7182025

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Ninemeister 9m Lightweight Flywheel | Porsche 718 2.0 & 2.5 PDK Performance Upgrade - Dual Mass Replacement

The Ninemeister 9m lightweight flywheel for Porsche 718 2.0 and 2.5 PDK models is a precision-engineered performance upgrade designed to reduce rotating mass, sharpen throttle response, and improve power delivery to the wheels. CNC machined from high-carbon forged billet steel, this flywheel delivers a significant 45% weight reduction compared to the standard unit while retaining durability and drivability.

Fits:

• Porsche Boxster 718 2.0L Manual (300 Bhp)
• Porsche Boxster 718 2.0L PDK (300 Bhp)
• Porsche Boxster S 718 2.5L Manual (350 Bhp)
• Porsche Boxster S 718 2.5L PDK (350 Bhp)
• Porsche Boxster T 718 2.0L Manual (300 Bhp)
• Porsche Boxster T 718 2.0L PDK (300 Bhp)
• Porsche Boxster GTS 718 2.5L Manual (365 Bhp)
• Porsche Boxster GTS 718 2.5L PDK (365 Bhp)
• Porsche Cayman 718 2.0L Manual (300Bhp)
• Porsche Cayman 718 2.0L PDK (300Bhp)
• Porsche Cayman S 718 2.5L Manual (350Bhp)
• Porsche Cayman S 718 2.5L PDK (350Bhp)
• Porsche Cayman T 718 2.0L Manual (300Bhp)
• Porsche Cayman T 718 2.0L PDK (300 Bhp)
• Porsche Cayman GTS 718 2.5L Manual (365 Bhp)
• Porsche Cayman GTS 718 2.5L PDK (365 Bhp)

Available from Design911, the Ninemeister 9m flywheel is a direct-fit replacement developed for enthusiasts seeking quicker acceleration, enhanced engine response, and a more connected driving experience from their Porsche 718.

What Does a Lightweight Flywheel Do?

The flywheel plays a critical role in engine inertia and power transfer.

Core Functions:

• Transfers engine torque to the PDK transmission
• Stabilises crankshaft rotation
• Reduces rotational inertia for faster engine response
• Improves throttle sharpness and acceleration
• Helps deliver more usable power to the wheels

By reducing mass, a lightweight flywheel allows the engine to rev more freely and respond faster to driver inputs.

Why Do Standard Flywheels Wear or Limit Performance?

While designed for refinement, standard flywheels can become a performance restriction over time.

Common Issues Include:

• Excessive weight reducing engine responsiveness
  
• Heat stress from repeated acceleration and load
  
• Surface wear affecting smooth engagement
  
• Increased inertia dulling throttle response
  
• Age-related fatigue in high-mileage or driven-hard vehicles

As performance demands increase, the standard flywheel can limit the true potential of the 718 platform.

Why Upgrade to the Ninemeister 9m Lightweight Flywheel?

Upgrading to the Ninemeister 9m flywheel delivers immediate and tangible performance benefits.

Key Benefits:

• 45% weight reduction over the standard flywheel
• CNC machined high-carbon forged billet steel construction
• Reduced rotating mass and lower engine inertia
• Faster revving and quicker acceleration
• Sharper throttle response and improved driver engagement
• More efficient transfer of power to the wheels
• Direct replacement with no modification required

This upgrade is ideal for fast-road and enthusiast-driven Porsche 718 builds where responsiveness and performance feel matter most.

Highlights

• Ninemeister 9m lightweight flywheel upgrade
• Designed for Porsche 718 2.0ltr & 2.5ltr PDK models
• CNC machined forged billet steel construction
• Significant reduction in rotating mass
• Enhances throttle response and acceleration       

Related reference numbers
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9M982105264A

The product you are viewing cross references to these numbers

9m Lightweight flywheel billet steel. 

Fits:

Porsche 718 Boxster GTS 4.0ltr - 2017 Onwards
Porsche 718 Boxster Spyder 4.0ltr - 2017 Onwards
Porsche 718 Cayman GTS 4.0ltr - 2017 Onwards
Porsche 718 Cayman GT4 4.0ltr - 2019 Onwards

CNC machined high carbon forged billet steel material

• 45% weight reduction
• Direct replacement
• Quicker acceleration
• Reduced rotating mass and less engine inertia
• Better throttle response
• OEM clutch compatible
• More power to the wheels

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

9M82105262E

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Lightweight Steel Flywheel.



Fits:
Porsche 718 Cayman GT4 4.0L 2020-21

Features:
• Light-weight for improved performance and drastically reduced M.O.I. (Moment of Inertia)
• OEM clutches bolt on for easy installation
• High tolerance manufacturing to insure a perfect hassle free installation
• Designed for normal street use for every day performance enthusiasts
• Stepped dowel pins so they are held captive by the clutch cover
• Racing parts available for the professional
• Highest quality materials for the flywheel like treated steel and OEM quality starter ring gears
• CAD designed/ CNC machined in house for the ultimate in quality control
• One year limited warranty on production components

Related reference numbers
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106447-12

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Uprated clutch and lightened flywheel kit. 

Fits:
Porsche 718 Boxster Spyder / GTS 4.0ltr - 2017 onwards
Porsche 718 Cayman GT4 / GTS  4.0ltr - 2017 onwards

9m Lightweight Flywheel

• CNC machined high carbon forged billet steel material
• 45% weight reduction
• Direct replacement
• Quicker acceleration
• Reduced rotating mass and less engine inertia
• Better throttle response
• OEM clutch compatible
• More power to the wheels

9m 718 4.0ltr Upgraded clutch kit 

• Higher thermal capacity compared to OEM friction material
• Higher transmittable torque compared to OEM
• Performance pressure plate giving higher transmittable torque and higher clamp load
• Capable of over 550Nm torque
• Sprung uprated organic center plate with OEM pedal feel
• Ideal upgrade for typically fast road/track day cars and everyday use

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

9M718LWF

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