RB 2pc Rotors (380/380) OE Caliper BBK for Porsche 991 C2S/C4S Front & Rear (P/N 2507-K & 2508-K)

Product Description

This BBK is specially designed and packaged for upgrading your original 340/330mm (or 350/330mm) to the same rotor sizes as 991/992 GT3 380/380mm.

• Easy 100% bolt on installation.
• No bleeding to your brake system - Save trouble in bleeding the system if you were to install a traditional upgraded BBK.
• Retain OE calipers that you are familiar with for the same look and maintenance.
• Lower maintenance/replacement cost
• Increase you brake thermal capacity than original so they will last a lot longer.
• Best value and the most affordable BBK for 991/992 CS 2/4.
• Exclusively designed and built by RB.
• Improve the overall performance and look with a BBK w/o the cost and hassle of an aftermarket or swapped BBK.

Kit includes:

• 2 ea front light weight 2 pc rotors (380x34mm vs. original 340/350x34mm)
• 2 ea rear light weight 2 pc rotors (380x28mm vs. original 330x28mm)
• Necessary caliper spacers & hardware kit
• 1 set brake pads (optional)

Replacement brake pads:

• Front: PD991A
• Rear: PD1300

Replacement rotor rings:

• Front: D501-04
• Rear: D502-03

Forum discussions:

• CS/GTS BBK with GT3 Size Rotors
• 991 to 911S Rotor Diameter