GiroDisc 991 GT3/GT3RS/GT2RS PCCB-to-Iron Conversion Slotted Front Rotors — Fits 2012-2019 Porsche 911

SKU: GIRA1-154
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About GiroDisc

GiroDisc engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full GiroDisc lineup with fast shipping and expert fitment support — order with confidence.

PCCB to Iron Conversion for Porsche 991 GT3/RS

If you own a Porsche 991 GT3, GT3RS, or GT2RS equipped with PCCB (Carbon Ceramic) brakes and want to preserve them or switch to a more cost-effective track solution, these GiroDisc slotted front rotors are the perfect choice. This conversion kit allows you to run iron rotors while utilizing the specific pad shape required for your existing calipers.

Why Convert to Iron?

Converting to iron rotors is a popular choice for track enthusiasts who want to avoid the high replacement costs of carbon-ceramic discs. GiroDisc provides a high-performance iron solution that delivers exceptional stopping power and heat resistance, making it ideal for aggressive track driving. These rotors are designed to integrate seamlessly with your factory setup.

  • Designed for 991 GT3/RS/GT2RS with PCCB calipers
  • Uses iron rotor pad shape for optimal performance
  • Slotted design for consistent braking and cooling
  • Lightweight two-piece construction
  • Saves your expensive carbon rotors for resale or street use

By switching to this GiroDisc conversion, you can push your Porsche to the limit on the track without worrying about the wear on your ceramic discs. The rotors offer excellent thermal stability and a consistent pedal feel, ensuring you maintain control in high-speed environments. Upgrade your braking strategy today with high-quality components from GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About GiroDisc

GiroDisc engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full GiroDisc lineup with fast shipping and expert fitment support — order with confidence.

PCCB to Iron Conversion for Porsche 991 GT3/RS

If you own a Porsche 991 GT3, GT3RS, or GT2RS equipped with PCCB (Carbon Ceramic) brakes and want to preserve them or switch to a more cost-effective track solution, these GiroDisc slotted front rotors are the perfect choice. This conversion kit allows you to run iron rotors while utilizing the specific pad shape required for your existing calipers.

Why Convert to Iron?

Converting to iron rotors is a popular choice for track enthusiasts who want to avoid the high replacement costs of carbon-ceramic discs. GiroDisc provides a high-performance iron solution that delivers exceptional stopping power and heat resistance, making it ideal for aggressive track driving. These rotors are designed to integrate seamlessly with your factory setup.

  • Designed for 991 GT3/RS/GT2RS with PCCB calipers
  • Uses iron rotor pad shape for optimal performance
  • Slotted design for consistent braking and cooling
  • Lightweight two-piece construction
  • Saves your expensive carbon rotors for resale or street use

By switching to this GiroDisc conversion, you can push your Porsche to the limit on the track without worrying about the wear on your ceramic discs. The rotors offer excellent thermal stability and a consistent pedal feel, ensuring you maintain control in high-speed environments. Upgrade your braking strategy today with high-quality components from GGCRACING.

Product Details

Product Description

About GiroDisc

GiroDisc engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full GiroDisc lineup with fast shipping and expert fitment support — order with confidence.

PCCB to Iron Conversion for Porsche 991 GT3/RS

If you own a Porsche 991 GT3, GT3RS, or GT2RS equipped with PCCB (Carbon Ceramic) brakes and want to preserve them or switch to a more cost-effective track solution, these GiroDisc slotted front rotors are the perfect choice. This conversion kit allows you to run iron rotors while utilizing the specific pad shape required for your existing calipers.

Why Convert to Iron?

Converting to iron rotors is a popular choice for track enthusiasts who want to avoid the high replacement costs of carbon-ceramic discs. GiroDisc provides a high-performance iron solution that delivers exceptional stopping power and heat resistance, making it ideal for aggressive track driving. These rotors are designed to integrate seamlessly with your factory setup.

  • Designed for 991 GT3/RS/GT2RS with PCCB calipers
  • Uses iron rotor pad shape for optimal performance
  • Slotted design for consistent braking and cooling
  • Lightweight two-piece construction
  • Saves your expensive carbon rotors for resale or street use

By switching to this GiroDisc conversion, you can push your Porsche to the limit on the track without worrying about the wear on your ceramic discs. The rotors offer excellent thermal stability and a consistent pedal feel, ensuring you maintain control in high-speed environments. Upgrade your braking strategy today with high-quality components from GGCRACING.

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