Girodisc Front Steel Disc Upgrade – 380mm – Porsche 991 GT3 / GT3 RS (Steel Brakes) - Clubsport Garage

Girodisc Front Steel Disc Upgrade – 380mm – Porsche 991 GT3 / GT3 RS (Steel Brakes)

By Girodisc
£1,825.00
Available – Dispatched within 3–5 Days
Worldwide Shipping
Official Dealer
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Product Description

The Girodisc 380mm Front Steel Disc Upgrade Kit is a direct replacement front brake disc upgrade for Porsche 991 GT3 and GT3 RS models fitted with factory steel brakes and red calipers.

Designed to replace the OEM 380mm single-piece cast iron front discs, the Girodisc 2-piece floating rotor setup improves heat management, reduces unsprung mass and enhances braking performance under demanding track and fast road use. The system retains compatibility with the OEM red calipers and brake lines, making it a straightforward upgrade for factory steel brake cars.

Each rotor uses a CNC machined 6061-T6 aluminium hat, anodised for corrosion resistance, paired with a high-performance steel / iron rotor. The directional curved vane design helps improve cooling airflow through the disc during repeated hard braking, reducing thermal stress and supporting more consistent pedal feel.

This kit is suitable for aggressive road driving, track days and endurance applications. For balanced performance, matching rear Girodisc rotors are available separately.

Note: These rotors are designed for Porsche 991 GT3 / GT3 RS models that came with steel brakes (red calipers) from the factory. If your car has PCCB (carbon ceramic brakes with yellow calipers), you’ll need the larger 410mm Girodisc kit...

Girodisc Front Steel Disc Conversion – 410mm – Porsche 991 GT3 / GT3 RS / GT2 RS / 718 GT4 RS

Rear Rotors Also Available

We also offer the matching rear Girodisc rotor upgrade for steel brake cars, sold separately for inventory tracking. For consistent performance and balance, we recommend replacing both front and rear discs together.

Girodisc Rear Steel Disc Upgrade – 380mm – Porsche 991 GT3 / GT3 RS (Steel Brakes)

Please note: this kit is for Porsche 991 GT3 / GT3 RS models with factory steel brakes only. 

⚠️ Not suitable for PCCB-equipped models (yellow calipers / carbon ceramic discs).

Further information below.

Key Features
  • Girodisc 380mm front steel disc upgrade kit
  • Designed for Porsche 991 GT3 / GT3 RS
  • Front axle fitment
  • Direct replacement for OEM 380mm single-piece cast iron front discs
  • For factory steel brake cars with red calipers
  • Not suitable for PCCB carbon ceramic brake cars
  • 2-piece floating steel disc / iron rotor design
  • Reduces unsprung mass compared with OEM single-piece discs
  • Improves heat resistance under demanding use
  • Enhances pedal feel and braking consistency
  • Directional curved vane design
  • Improved cooling airflow through the disc
  • Increased resistance to cracking and thermal stress
  • CNC machined 6061-T6 aluminium hats
  • Anodised for corrosion resistance
  • Fully machined in the USA
  • Reuses OEM red calipers
  • Reuses OEM brake lines
  • Compatible with performance brake pads such as Ferodo DS3.12, Endless ME20 / ME22 and PFC 08 / 11
  • Ideal for track, fast road and endurance driving applications
  • Replacement discs include new hardware
  • Aluminium bells do not require replacement when changing worn rotor rings
  • Sold and priced as a pair

Vehicle Compatibility
  • Porsche 991.1 GT3 with factory steel brakes only
  • Porsche 991.2 GT3 with factory steel brakes only
  • Porsche 991.1 GT3 RS with factory steel brakes only
  • Porsche 991.2 GT3 RS with factory steel brakes only
  • Designed for vehicles fitted with OEM 380mm front steel brake discs and red calipers.
  • Not suitable for vehicles fitted with PCCB carbon ceramic brakes, usually identified by yellow calipers.
  • PCCB-equipped vehicles require the larger 410mm Girodisc steel disc conversion kit.
  • Please confirm vehicle model, brake package, front disc size, caliper colour and whether the car has factory steel brakes or PCCB before ordering.

What's Included
  • Pair of Girodisc 380mm front steel discs / rotors
  • Left front 2-piece floating rotor
  • Right front 2-piece floating rotor
  • CNC machined 6061-T6 aluminium hats
  • Anodised aluminium bell / hat assemblies
  • Steel / iron rotor rings
  • Floating rotor hardware
  • Brake pads, brake lines, rear rotors, brake fluid and fitting consumables are not included unless supplied separately

FAQs

What vehicles are these Girodisc front rotors designed for?

They are designed for Porsche 991.1 and 991.2 GT3 / GT3 RS models fitted with factory steel brakes.

Are these front or rear discs?

This listing is for front brake discs / rotors.

What size are the discs?

These are 380mm front discs.

Do these replace the factory steel discs?

Yes. They are a direct replacement for the OEM 380mm single-piece cast iron front discs.

Do they fit cars with red calipers?

Yes. They are designed for factory steel brake cars with red calipers.

Do they fit PCCB cars with yellow calipers?

No. PCCB-equipped cars require the larger 410mm Girodisc steel disc conversion kit.

Do they require modifications?

No. They are designed as a direct replacement for compatible factory steel brake cars.

Can I reuse my OEM calipers and brake lines?

Yes. The kit reuses the OEM red calipers and brake lines.

What are the hats made from?

The hats are CNC machined from 6061-T6 aluminium and anodised for corrosion resistance.

What is the benefit of the 2-piece floating design?

The 2-piece floating design helps reduce unsprung mass, manage heat expansion and improve braking consistency under demanding use.

Are matching rear rotors available?

Yes. Matching rear Girodisc rotors are available separately.

Which brake pads work well with these discs?

Suitable performance pad options include Ferodo DS3.12, Endless ME20 / ME22 and PFC 08 / 11, depending on intended use.

Are they suitable for track use?

Yes. They are ideal for track, fast road and endurance driving applications.

Are they sold individually or as a pair?

They are sold and priced as a pair.

What should I check before ordering?

Please confirm vehicle model, brake package, front disc size, caliper colour and whether your car has factory steel brakes or PCCB before ordering.

Shipping & Delivery

Dispatch Times

Most stocked items dispatch within 1–2 business days. Some products may have longer lead times due to special ordering, availability, or build times. If your order contains multiple items, they may be shipped together once all items are ready unless otherwise agreed.

UK & International Shipping

We ship worldwide. Transit times vary depending on destination and courier. Tracking details are provided once your order is dispatched.

Import Duties & International Orders

International customers are responsible for all import duties, taxes, and clearance fees. These are not included in our prices and are outside of our control. Refusal or non-payment of import charges may result in return shipping, handling fees, and customs charges being deducted from any refund.

Damaged Shipments

If your parcel arrives visibly damaged, please refuse delivery or note the damage with the courier. If damage is discovered after opening, contact us immediately with photos. Do not install damaged items, as installation voids courier claims and return eligibility.

Returns

Returns must be authorised before sending anything back. Returns must be requested within 14 days of delivery and returned within 14 days of approval, in unused/uninstalled condition and in original packaging. Some items, including special-order, built-to-order, used, installed, or modified parts, are non-returnable.

Full details are available in our Shipping Policy and Returns & Refund Policy.

Warranty & Disclaimer

Warranty

Most products include a manufacturer’s warranty covering manufacturing defects only. Warranties do not cover wear and tear, improper installation, misuse or neglect, track use, competition or racing environments, labour costs, vehicle damage, downtime, or consequential loss. Warranty outcomes are determined by the manufacturer, not Clubsport Garage. Items must be returned for inspection at the customer’s cost unless agreed otherwise.

Fitment & Installation

Many products are aftermarket components and may require professional installation or minor adjustment. Perfect OEM-level fitment cannot be guaranteed. Professional installation by an experienced workshop is strongly recommended. Installed or used items cannot be returned.

Motorsport Use Disclaimer

Some products are intended for off-road, track, or motorsport use only and may not be legal for road use, for example non-TÜV/DOT-approved parts. It is the customer’s responsibility to ensure compliance with local laws, insurance requirements, and vehicle regulations. By purchasing and installing aftermarket parts, you accept all responsibility for ensuring compatibility, legal compliance, proper installation, and any resulting wear, damage, or failure.

Product Images & Descriptions

Product photos are illustrative and may differ slightly from the item supplied. If specific details are important, please contact us before purchasing.

Full details are available in our Terms of Service and related policy pages.