AP Racing CP9660 Front 6-Piston Big Brake Kit
- AP Racing
- Front
- 6-piston
- Track
- Circuit Race Car
We'll confirm the exact color with you before we build the kit.
- Complete AP Racing kit — everything for one axle
- Checked against your car before it ships
- Warranty & returns
- Installation help
- Built to order — ships in about 15 business days
About this kit
A complete front big brake kit for the Audi A3 8L1, Audi A3 8P1, Audi A3 8V1 and more. It uses two AP Racing CP9660 6-piston calipers and a pair of rotors (355–380 mm) in high-carbon steel or carbon-ceramic, plus pads, braided lines and mounting hardware.
We match the mounting brackets to your car. You'll need at least 18-inch wheels with enough room for the caliper. Not sure? Send us your wheel details.
You choose the rotor size, rotor material and caliper color. Calipers come in Gray, or in a custom color.
Built to order. It ships in about 15 business days.
Fits these cars
- Audi A3 8L1
- Audi A3 8P1
- Audi A3 8V1
- Audi A3 Cabriolet 8P7
- Audi A3 Cabriolet 8V7
- Audi A3 Limousine 8VS
- Audi A3 Sportback 48V 8YA
- Audi A3 Sportback 8L1
- Audi A3 Sportback 8PA
- Audi A3 Sportback 8VA
- Audi A3 Sportback 8VF
- Audi A3 Sportback 8VS
- Audi A3 Sportback 8Y
- Audi A3 Sportback e-tron 8VA
- Audi A3L Limousine 8Y
- Audi A4 Allroad Quattro B9(8W)
- Audi A4 Avant B9(8W)
- Audi A4 B9(8W)
- Audi A4L B9(8W)
- Audi A5 Cabriolet F57
- Audi A5 Cabriolet F5E
- Audi A5 Coupe F53
- Audi A5 Coupe F5P
- Audi A5 Sportback F5A
- Audi A5 Sportback F5F
- Audi A6 Avant C8(4A)
- Audi A6 C8(4A)
- Audi A6L 48V C8(4K)
- Audi A6L C8(4K)
- Audi A7 Sportback 48V 4KA
- Audi A7 Sportback 4KA
- Audi A7L 48V MLB EVO
- Audi A7L MLB EVO
- Audi A8L 48V D5
- Audi A8L D5
- Audi Q2L MQB
- Audi Q2L e-tron MQB
- Audi Q3 A5(8U)
- Audi Q3 MQB(F3)
- Audi Q3 Sportback MQB(F3)
- Audi Q5 B9(FY)
- Audi Q5L B9(FY)
- Audi Q7 48V 4M
- Audi Q7 4M
- Audi Q8 48V 4M
- Audi RS4 Avant B9
- Audi RS6 Avant 48V C8
- Audi S3 8L
- Audi S3 8P
- Audi S3 8VF
Kits are matched to the cars listed by make, model and years. Wheels, hubs and trim levels can still differ, so check your car and wheels before you order, or ask us.
Car not listed? Ask us →Specifications
| Brand | AP Racing |
|---|---|
| Part type | Big Brake Kit |
| Axle position | Front |
| Piston count | 6 |
| Caliper mounting | Vehicle-specific bracket mount |
| Rotor Material | High-Carbon Steel, Carbon Ceramic |
| Rotor Size | Ø355 × 32 mm, Ø380 × 32 mm |
| Caliper Color | Gray, Custom Color |
| Minimum wheel size | 18" |
| Pad compound (included) | M-05 |
| Caliper material | Forged aluminum alloy |
| Caliper bracket | High carbon steel, CNC-machined |
| Brake lines | Three-layer reinforced construction, PTFE inner liner / SUS304 stainless-steel braid / PVC protective outer sheath |
| Intended use | Track |
| Vehicle class | Circuit Race Car |
| SKU | AP-CP9660-CI-355X32-GRY |
| Lead time (approx.) | 15 business days |
Brake pad compounds
| Compound | Intended use | Rotor | Max temp | Avg μ |
|---|---|---|---|---|
| M-05 · TRACK included | Track — sprint racing, time attack and hard track days | High-Carbon Steel | 750 °C | 0.45 |
| M-05+ · RALLY | Rally and endurance — long sessions and repeated heat cycles | High-Carbon Steel | 700 °C | 0.43 |
| M-03 · CCB+ | Carbon-ceramic rotors only — street and track | Carbon Ceramic | 750 °C | 0.44 |
Pad compound is matched to the rotor material you select. Iron-compatible pads must not be fitted to carbon-ceramic rotors, or the other way round.
What's in the box
- Brake calipers × 2
- Brake pads (one axle set) × 4
- Brake rotors × 2
- Stainless-steel braided brake lines × 2
- Vehicle-specific caliper mounting brackets × 2
- Mounting hardware × 1 set
About the brand
AP Racing
British brake and clutch specialist from Coventry, founded 1968, with one of the longest records in professional motorsport. CP-series calipers are the basis of its road-going big brake kits.
All AP Racing kits →Common questions
Will it fit my wheels?
Big calipers need room inside the wheel. Check the minimum wheel size in the specifications. If you're not sure, send us your wheel make and size and we'll check.
Do I need new brake lines or fluid?
Braided lines come with the kit. You'll need fresh DOT 4 fluid and a full bleed after fitting.
Can I fit it myself?
If you're used to brake work and have a torque wrench, yes. If not, have a workshop fit it. Our installation page covers the basic steps and bed-in.
Similar kits
Not sure what fits?
Send us your car and wheels. We'll tell you what fits.
Year, make, model, wheel size, and whether it's for the street or the track. We reply by email within one business day.