Barbaro Racing KD1555 RS-652 front brake pads for Nissan GT-R, Dodge Challenger SRT / Charger SRT, Jeep Grand Cherokee SRT and Dicase X61 / X62 calipers. RS-652 is Barbaro's extreme hybrid race compound for steel and carbon-ceramic rotors (50–800°C, μ 0.49–0.57 on steel). Pad shape KD1555: 189.7 × 92.6 × 18.5 mm; interchanges with FMSI D1405.
Specifications
Caliper fitment
| Caliper brand | Caliper | Details |
|---|
| Dicase | X61 / X62 | D65 |
Vehicle fitment
| Make | Model | Chassis | Years | Engine / variant | Notes |
|---|
| Dodge | Challenger SRT | 3rd gen | 2008– | 6.2T | |
| Dodge | Charger SRT | LD | 2011– | 6.2T | |
| Jeep | Grand Cherokee SRT | WK2 | 2011– | 6.4L | |
| Nissan | GT-R | R35 | 2008– | 3.8T | |
Fitment is compiled from the Barbaro Racing application catalogue and Barbaro factory data, together with the vehicle listings of the interchange part numbers below. Brake packages can differ within one model — please compare your current pads with the dimensions and drawing, or send us your VIN, before ordering.
Cross-reference / interchange numbers
Interchange numbers identify the matching pad shape. Friction material, shims and wear-sensor hardware can differ between brands.
About the RS-652 compound
RS-652 · The extreme hybrid
Seven years in the making. Endurance and sprint on both carbon-ceramic and steel rotors with zero fall-off, protected by a self-renewing 1–3 micron transfer film. Average friction 0.555 μ — measured beyond PAGID RSL1 (0.510) and Endless MA45B (0.438).
- Temperature range: 50–800°C
- Friction: μ 0.49–0.57 (steel); rising with temperature on CCB
- Discs: Steel + carbon-ceramic
- Lock threshold: 95 bar (RS-635: 65 bar)
- +46.1% lock threshold — 95 bar vs 65 bar
- On CCB, friction rises with temperature — 0.689 μ at 800°C
- Disc wear 0.001 mm — 1/9 of RSL1, 1/18 of MA45B
- Ideal for: TCR, GT and touring-car racing on steel or carbon-ceramic discs
RS-652 full specifications on barbaro-racing.com
About Barbaro Racing
Barbaro Racing (野蛮人) is the performance brand of the CAC Racing Division — proprietary compounds developed entirely in-house. Development begins on the dynamometer and ends on the circuit: every friction formula is bench-tested to destruction before earning the right to carry the Barbaro name. All compounds are validated against GB5763-2018 national standards; Street Series compounds are asbestos-free.
