2023 PORSCHE 911 GT3 RS · 992 · VERIFIED ON SEP 4, 2026
What size are the brake rotors on a 2023 Porsche 911 GT3 RS?
front 408 mm × 36 mm, ventilated × 36 mm, 6-piston aluminum monobloc fixed, 32 mm pistons caliper; rear 380 mm, ventilated, 4-piston fixed caliper; PCCB: 410 mm front / 390 mm rear — Porsche Newsroom — '992 911 GT3 RS Press Kit' (PDF), Chassis section. Minimum wheel diameter to clear: 20 inches.
front 408 mm × 36 mm, ventilated × 36 mm, 6-piston aluminum monobloc fixed, 32 mm pistons caliper; rear 380 mm, ventilated, 4-piston fixed caliper; PCCB: 410 mm front / 390 mm rear — Porsche Newsroom — '992 911 GT3 RS Press Kit' (PDF), Chassis section.
01Sourced rows
Front rotor: 408 mm × 36 mm, ventilated — Porsche Newsroom — '992 911 GT3 RS Press Kit' (PDF), Chassis section
“brake discs with a diameter of 408 millimeters are used on the front axle … the thickness of the discs has been increased from 34 to 36 millimeters”
Front rotor thickness: 36 mm — Porsche Newsroom — '992 911 GT3 RS Press Kit' (PDF), Chassis section
Front caliper: 6-piston aluminum monobloc fixed, 32 mm pistons — Porsche Newsroom — '992 911 GT3 RS Press Kit' (PDF), Chassis section
“Aluminum monobloc fixed-caliper brakes with six pistons each … piston diameters have been increased from 30 to 32 mm”
Rear rotor: 380 mm, ventilated — Porsche Newsroom — '992 911 GT3 RS Press Kit' (PDF), Chassis section
“The rear axle continues to be fitted with 380-mm brake discs and four-piston fixed-caliper brakes.”
Rear caliper: 4-piston fixed — Porsche Newsroom — '992 911 GT3 RS Press Kit' (PDF), Chassis section
Optional brake: PCCB: 410 mm front / 390 mm rear — Porsche Newsroom — '992 911 GT3 RS Press Kit' (PDF), Chassis section
“The optionally available Porsche Ceramic Composite Brake (PCCB) has 410-mm discs on the front axle and 390-mm discs on the rear axle.”
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Fitment is computed from published vehicle data and the retailer's listed sizes (catalog 2026-09-04-tirerack-d, verified on Sep 4, 2026). Prices are list prices on that date. Verify with your installer before you buy. Buy links may be affiliate links.
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