GiroDisc 350mm 2-Piece Slotted Front Brake Rotors — Fits 2012-2016 Porsche 911 (991.1) Carrera S/4S/GTS

SKU: GIRA1-122
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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.

Watch in action

Precision Braking for Porsche 991.1 Carrera

Enhance the stopping capabilities of your 2012-2016 Porsche 911 (991.1) Carrera S, 4S, or GTS with GiroDisc 350mm 2-piece slotted front rotors. These rotors are meticulously engineered to provide the perfect balance of street comfort and track-ready performance for your iconic German sports car.

Why Choose GiroDisc for Your Porsche?

  • 350mm Diameter: Perfectly matched to your factory brake system for optimal leverage and stopping power.
  • 2-Piece Floating Design: Allows for thermal expansion without warping, ensuring a smooth pedal feel under heavy braking.
  • Slotted Surface: Improves pad bite and helps evacuate debris, keeping your braking consistent in all weather conditions.
  • Lightweight Aluminum Hats: Reduces unsprung weight, leading to sharper steering and improved suspension response.

GiroDisc rotors are a direct replacement for your factory discs, maintaining full compatibility with your Porsche's braking system. The high-performance iron alloy used in the friction rings is specifically formulated to resist cracking and fading, even during aggressive track sessions. By choosing these 2-piece rotors, you are investing in longevity and performance, as the friction rings can be replaced independently of the hats when they eventually wear down. Experience the confidence of professional-grade braking components on your Porsche 991.1 by shopping the selection at 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.

Watch in action

Precision Braking for Porsche 991.1 Carrera

Enhance the stopping capabilities of your 2012-2016 Porsche 911 (991.1) Carrera S, 4S, or GTS with GiroDisc 350mm 2-piece slotted front rotors. These rotors are meticulously engineered to provide the perfect balance of street comfort and track-ready performance for your iconic German sports car.

Why Choose GiroDisc for Your Porsche?

  • 350mm Diameter: Perfectly matched to your factory brake system for optimal leverage and stopping power.
  • 2-Piece Floating Design: Allows for thermal expansion without warping, ensuring a smooth pedal feel under heavy braking.
  • Slotted Surface: Improves pad bite and helps evacuate debris, keeping your braking consistent in all weather conditions.
  • Lightweight Aluminum Hats: Reduces unsprung weight, leading to sharper steering and improved suspension response.

GiroDisc rotors are a direct replacement for your factory discs, maintaining full compatibility with your Porsche's braking system. The high-performance iron alloy used in the friction rings is specifically formulated to resist cracking and fading, even during aggressive track sessions. By choosing these 2-piece rotors, you are investing in longevity and performance, as the friction rings can be replaced independently of the hats when they eventually wear down. Experience the confidence of professional-grade braking components on your Porsche 991.1 by shopping the selection at 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.

Watch in action

Precision Braking for Porsche 991.1 Carrera

Enhance the stopping capabilities of your 2012-2016 Porsche 911 (991.1) Carrera S, 4S, or GTS with GiroDisc 350mm 2-piece slotted front rotors. These rotors are meticulously engineered to provide the perfect balance of street comfort and track-ready performance for your iconic German sports car.

Why Choose GiroDisc for Your Porsche?

  • 350mm Diameter: Perfectly matched to your factory brake system for optimal leverage and stopping power.
  • 2-Piece Floating Design: Allows for thermal expansion without warping, ensuring a smooth pedal feel under heavy braking.
  • Slotted Surface: Improves pad bite and helps evacuate debris, keeping your braking consistent in all weather conditions.
  • Lightweight Aluminum Hats: Reduces unsprung weight, leading to sharper steering and improved suspension response.

GiroDisc rotors are a direct replacement for your factory discs, maintaining full compatibility with your Porsche's braking system. The high-performance iron alloy used in the friction rings is specifically formulated to resist cracking and fading, even during aggressive track sessions. By choosing these 2-piece rotors, you are investing in longevity and performance, as the friction rings can be replaced independently of the hats when they eventually wear down. Experience the confidence of professional-grade braking components on your Porsche 991.1 by shopping the selection at GGCRACING.

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