PFC Porsche 991/992 GT3 R Rear Brake Pads - 39 Compound - 7700.39.25.34
PFC 7700.39.25.34 rear brake pads with 39 Compound deliver blistering bite and ultra‑stable braking for Porsche 991/992 GT3 R. Ideal for sprint and semi‑endurance GT, TCR, NASCAR, and rally applications, these pads offer maximum torque, excellent wear, and a firm, confidence‑inspiring pedal. Compatible with top GT racing platforms including Porsche 991/992 GT3 R, Ferrari 488 GT3/GTE, Audi R8 LMS GT3, BMW M4 GT3, Lamborghini Huracán GT3, and Mercedes-AMG GT3. Trusted across IMSA, WEC, and SRO championships.
- PFC part number 7700.39.25.34 – rear pads for Porsche 991 GT3 R (2019–) & 992 GT3 R (2023–)
- 39 Compound: PFC’s most aggressive, high‑torque sprint/semi‑endurance friction
- Highest average torque and strong initial bite across full temperature range
- Rock‑solid modulation and release, avoiding lock‑up during high‑downforce braking
- Virtually no torque drop-off at high temperatures—consistent performance lap after lap
- Excellent wear characteristics—outlasts compounds 13, 15, and 333
- Built for the most severe sprint/semi‑endurance racing environments
- Ideal for GT3, GT4, TCR, NASCAR, LMP3, and rally applications
- Popular fitments include Porsche 991/992 GT3 R and RSR GTE rear calipers
Common Fitments:
| Make | Model / Application | Notes |
|---|---|---|
| Alpine | A110 Cup / GT4 – Rear | Race – 25mm |
| Aston Martin | Vantage GT3 (inc endurance) – Rear (2018–23) | Race – 25mm |
| Audi | R8 LMS GT3 (2016–) – Rear | Race – 25mm |
| Audi | R8 LMS GT2 / GT4 (2022–) – Rear | Race – 25mm |
| Bentley | Continental GT3 (inc endurance) – Rear | Race – 25mm |
| BMW | M4 GT3 / GT4 (2023–) – Rear | Race – 25mm |
| BMW | M8 GTE – Rear | Race – 25mm |
| Chevrolet | Corvette C7 GT3 – Rear | Race – 25mm |
| Ferrari | 296 GT3 (2023–) – Rear | Race – 25mm |
| Ferrari | 355 (Challenge 1993–) – Front & Rear F355 | Race – 25mm |
| Ferrari | 360 / 430 / 458 | Race – 25mm |
| Ferrari | 458 (GT2 / GT3 Sprint & Endurance) | Race – 25mm |
| Ferrari | 488 (GT3 Sprint & Endurance) | Race – 25mm |
| Ferrari | 488 2017– (GTE) | Race – 25mm |
| Ford | Mustang GT3 (2022–) – Front | Race – 25mm |
| Honda | NSX GT3 (2022–) – Rear | Race – 25mm |
| KTM | Xbow GT4 (2015–) – Rear | Race – 25mm |
| Lamborghini | Gallardo GT3 / LP600 (2012) – Rear | Race – 25mm |
| Lamborghini | Huracán GT3 – Rear | Race – 25mm |
| Lamborghini | SuperTrofeo – Rear | Race – 25mm |
| Lexus | RC F GT3 – Rear | Race – 25mm |
| Lotus | Evora | Race – 25mm |
| McLaren | 650S GT3 (2015–) – Rear | Race – 25mm |
| McLaren | MP4-12C GT3 (2013–) – Rear | Race – 25mm |
| Mercedes-AMG | GT2 | Race – 25mm |
| Mercedes-AMG | SLR / SLS (Sprint) GT3 / GT4 | Race – 25mm |
| Mercedes-AMG | SLR / SLS (Endurance) GT3 / GT4 | Race – 25mm |
| NASCAR | — | 20mm / 25mm |
| Porsche | 991 GT3 R (2019–) – Rear | Race – 25mm |
| Porsche | 991 RSR GTE (2017–) – Rear | Race – 25mm |
| Porsche | 992 GT3 R (2023–) | Race – 25mm |
| Porsche | 996 GT3/RS (1998–04 inc Sprint) – Rear | Race – 25mm |
| Porsche | 997 GT2 (2007– Sprint & Endurance) – Rear | Race – 25mm |
| Porsche | 997 GT3 Grand AM / R / RSR (2007–) – Rear | Race – 25mm |
| Riley & Scott | Mark III | Race – 25mm |
| Toyota | Supra GT4 | Race – 25mm |
For drivers pushing Porsche 991/992 GT3 R cars to the limit, PFC’s 39 Compound rear brake pads (part number 7700.39.25.34) deliver track‑hardened performance and durability. This newest PFC compound is engineered specifically for sprint and semi‑endurance scenarios—perfect for GT, TCR, NASCAR, or rally stages.
Boasting the highest average torque in the PFC lineup, 39 Compound provides ferocious initial bite coupled with rock‑steady release and modulation—crucial for high‑downforce braking zones. A firm pedal feel gives immediate driver feedback, while virtually no torque rise with temperature ensures consistency throughout sessions.
Recommended OEM fitments include Porsche 991 GT3 R (2019–), 992 GT3 R (2023–), and Porsche RSR GTE models—making 7700.39.25.34 the go‑to option for pro teams and serious racers seeking maximum stopping power without compromise.
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