Paragon 2-Piece Rear Rotors Pair – Porsche 981 / 718 Cayman GT4 / 991 Turbo & Turbo S – 380 x 30mm

Overview
Paragon 2-Piece Rear Rotors are engineered for superior braking performance and cooling efficiency, designed specifically for high-performance track and race use. Featuring directional ventilation vanes, these rotors create suction and turbulence to channel airflow through the disc, significantly reducing operating temperatures and increasing resistance to cracking under harsh braking conditions. The floating 2-piece design allows thermal expansion while minimising deformation, ensuring consistent pad contact and reliable performance lap after lap.

Key Features

• 380 x 30mm slotted 2-piece rear rotors with directional ventilation vanes
• CM-250 high-carbon alloy cast iron rotor rings – heat-treated and CBN-machined
• Up to 30% cooler operation compared to OEM rotors for reduced fade
• Floating 2-piece construction with D-Bobbin (Short) 10-bolt mounting system
• Maintains OEM brake bias and ABS compatibility
• Slotted design improves pad bite, consistency, and wet-weather performance
• CNC-machined 6061-T6 aluminium hats – Mil-Spec Type III hard anodised
• Reduced unsprung mass for improved handling response
• Direct bolt-on installation – no modifications required

Construction
The rotor rings are manufactured from CM-250 high-carbon alloy cast iron for optimal bite, heat resistance, and durability. Each rotor is stress-relieved by heat treatment and CBN-machined to ensure precise bedding with new brake pads. Run-out is limited to ≤0.03mm and balance variation to within 2 grams for reduced vibration. Lightweight aluminium hats are CNC-machined from aerospace-grade 6061-T6, then Mil-Spec Type III hard anodised (clear or black) for maximum heat and corrosion resistance. Clear anodised hats are recommended for track use as they withstand higher operating temperatures, while black dyed hardcoat hats suit street or mixed applications (may discolour above 260°C).

Vehicle Compatibility

• Porsche 981 Cayman GT4 (2015–2016) – OEM iron brakes
• Porsche 718 Cayman GT4 (2020–present) – OEM iron brakes
• Porsche 991 Turbo & Turbo S (2012–2016) – OEM iron brakes
• Porsche 991.2 Turbo & Turbo S (2016–2019) – OEM iron brakes
• Porsche 997 Turbo (2010–2013) – OEM ceramic brakes
• Porsche 718 Spyder (2020–2022) – OEM iron brakes

OEM Cross Reference
Direct replacement for Porsche part numbers: 981.352.408.80 / 981.352.408.81

Kit Contents

• 1 x Pair of Paragon Performance 380 x 30mm 2-piece rotor assemblies
• Black hard coat/hard anodised 6061-T6 aluminium hats
• Stainless steel bobbins and anti-rattle clips
• Installation manual

Part Numbers

• P2R.209.380.300.22370.08.01.01.R – Black Hard Anodised Hat
• P2R.209.380.300.22370.08.01.02.R – Clear Hard Anodised Hat