KD5009 CSI-01B Front Brake Pads

Barbaro Racing KD5009 CSI-01B front brake pads for AP Racing CP8520 / CP9560, AP Racing CP8520 / CP8521 / CP8522, AP Racing CP9561, AP Racing CP9562 calipers. CSI-01B is Barbaro's designated carbon-ceramic disc compound (−30–600°C, μ 0.40–0.43, SAE J2521 AA noise rating). Pad shape KD5009: 175.6 × 92.4 × 16.2 mm; interchanges with AP Racing CP7555D70, Ferodo Racing FRP3147.

Specifications

Barbaro part number	KD5009
Compound	CSI-01B
Barbaro factory code (SKU)	D50095N6
Axle	Front
Dimensions (L × H × T)	175.6 × 92.4 × 16.2 mm
Friction material height	68.5 mm
Supplied as	One axle set
Also available for KD5009	KD5009 C-02 Silent City, KD5009 C-01 Premium Street, KD5009 S-01 Street & Track, KD5009 RS-635 Race Endurance

Caliper fitment

Caliper brand	Caliper	Details
AP Racing	CP8520 / CP9560	68.5 mm friction face
AP Racing	CP8520 / CP8521 / CP8522
AP Racing	CP9561
AP Racing	CP9562

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

Ferodo Racing	FRP3147
AP Racing	CP7555D70

Interchange numbers identify the matching pad shape. Friction material, shims and wear-sensor hardware can differ between brands.

About the CSI-01B compound

CSI-01B · The designated compound

The designated formula for short-fiber molded coated carbon-ceramic discs — built on the CSI-01 lineage dating to 2019. High performance and low noise, finally unified. And cold bite that Ferrari and Lamborghini carbon-ceramic systems have always lacked.

Temperature window: −30–600°C
Friction: μ 0.40–0.43
Noise rating: SAE J2521 AA
Disc: Carbon-ceramic
SAE J2521 noise rating AA — on unmodified bare pads
Friction rises with temperature — exceeding 1.0 μ in fade tests
2,000+ vehicles on road · fewer than 5 noise cases
Ideal for: Carbon-ceramic street cars, including Ferrari and Lamborghini CCB systems

CSI-01B 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.