Click to open expanded view

Ninemeister Lightweight Flywheel & Clutch Kit Porsche 718 GT4 / Spyder / GTS 4.0L

SKU: 9M718LWFC40
Price
$2,595.00

Select Options:

Clutch & Flywheel Kit
Currently Backordered - You can still place your order and we'll ship your order as soon as the product is back in stock!

Need some product help?
Installation Services

Don’t worry about the hassle — let our expert team at Forza Motorworks handle the installation for you. Our professional installation ensures everything fits and operates exactly as intended, giving you clean, factory-quality results, proper wiring or mounting, and avoiding the risks of DIY mistakes. You’ll save time, avoid frustration, and get peace of mind knowing the job is done right the first time. Contact us to learn about our installation services and enjoy a seamless upgrade from day one.

FAQ

Shipping Information
For items that are in stock, purchases made after 9am EST will be usually be shipped out in the next 1-2 business days. Please inquire to confirm lead times if you have specific time constraints. Orders will be sent via signature required at our discretion unless otherwise requested.

International Shipping
Any and all customs duties, taxes, import fees, and/or tariffs assessed in connection with the purchase shall be the sole responsibility of the customer/end user.

Return Policy
We have a 30-day return policy, which means you have 30 days after receiving your item to request a return. To be eligible for a return, your item must be in the same condition that you received it, unused and in its original packaging. All returns are subject to a restocking fee based on item and package condition. Buyer is responsible for paying for return shipping costs. If you need a return label, we will email you a return label and deduct cost from refund. Original shipping costs are not refundable. Special order items are not eligible for return.

Cancellation Policy
In order to cancel your order you must email within 24 hours of placing your order or before your order has shipped, whichever occurs first. Special order items are not eligible for cancelation.

Exchange Policy
We have a 30-day exchange policy, which means you have 30 days after receiving your item to request an exchange. To be eligible for an exchange, your item must be brand new in box. Buyer is responsible for paying all shipping costs to exchange product.

Product Description

The Ninemeister Lightweight Flywheel and Clutch Kit for 718 GT4 / Spyder / GTS 4.0L in a purpose-built single-mass flywheel and a high-capacity clutch assembly designed to sharpen throttle response and improve drivetrain efficiency. By dramatically reducing the rotating mass, this kit helps your flat-six engine rev more freely and deliver more of its power directly to the wheels — ideal for spirited driving or track-toned street builds. It also raises clutch load capacity and thermal resistance to support aggressive driving or high-gearbox stress without compromising daily usability.

Fitment Notes

  • Compatible with Porsche 718 GT4, Boxster Spyder, and 718 GTS 4.0L models — any 4.0 L manual-transmission 718 platform (2020 onward).

  • Designed as a direct-replacement for OEM flywheel and clutch — uses factory bell-housing, input shaft, and clutch linkage

  • Intended for manual transmission only — not compatible with PDK/automatic variants. 

  • Installation requires full clutch/flywheel removal; recommended to check and replace throw-out bearing as part of install.

Included

  • Single-mass lightweight flywheel (CNC-machined, high-carbon forged billet) replacing the stock dual-mass flywheel

  • Upgraded clutch assembly with reinforced pressure plate, high-capacity friction disc, and all necessary hardware for installation

  • Spigot bearing and flywheel bolts (new) to complete install and ensure secure fitment

Product Specs

  • Flywheel material: high-carbon forged billet / carbon-steel billet (per Ninemeister spec)

  • Flywheel weight: approximately 13.6 lbs (6.2 kg) vs. stock dual-mass ~24.9 lbs (11.3 kg) — ~45% reduction in inertia

  • Clutch capacity: capable of handling 550+ Nm torque, exceeding stock spec for handling higher power or track use.

  • Compatibility: OEM clutch actuation and pedal feel maintained — clutch engagement remains smooth and manageable even with the performance upgrade.

Product Features

  • Reduced Rotating Mass → More Power to the Wheels — By slashing flywheel inertia nearly in half, this kit allows the engine to rev quicker and deliver faster acceleration with less power lost turning heavy components.

  • Sharper Throttle Response & Faster Rev-Matching — Quicker RPM transitions make downshifts, rev-matching, and throttle inputs more immediate and engaging.

  • Higher Clutch Capacity & Durability — Uprated clutch materials and pressure plate handle increased torque and heat, making the kit suitable for aggressive driving or track use.

  • Direct Replacement, OEM-Compatible — No custom fabrication required — installs using stock mounting points and retains original pedal feel and clutch actuation characteristics.

  • Better Power Delivery Under Load — With lower drivetrain inertia, more of the engine’s torque reaches the wheels, improving launch, gear changes, and throttle response under stress.

  • Balanced Daily-Use & Performance — While optimized for track or spirited driving, the clutch portion is sprung and maintains manageable pedal effort, keeping it usable for daily driving too.