BMW M3 E90 E92 E93 25mm Endurance BTCC Big Brake Kit – AP Racing CP9668 368mm Front Brake Upgrade | XC3 Engineering
BMW M3 E90 E92 E93 25mm Endurance BTCC Big Brake Kit – AP Racing CP9668 368mm Front Brake Upgrade | XC3 Engineering
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Produktdetails
Product Overview
Upgrade the braking performance of your BMW E9X M3 with the XC3 BTCC Big Brake Kit featuring AP Racing CP9668 Pro 5000 R six-piston endurance calipers. Built around ex-BTCC 368mm x 36mm floating rotors, 25mm brake pads and XC3 precision-engineered mounting components, this complete front brake upgrade is designed for fast road, track day and endurance use.
The CP9668 caliper uses a deeper 25mm pad compared with the 18mm pad used in the CP9660, giving increased pad volume, longer consumable life and improved suitability for repeated high-temperature braking.
Key Features
- AP Racing CP9668 Pro 5000 R six-piston endurance calipers
- Choice of Anodised Grey or Nickel Plated caliper finish
- Full-depth 25mm brake pad format
- Ex-BTCC 368mm x 36mm floating brake rotors
- XC3 6082-T6 billet aluminium rotor bells
- XC3 6082-T6 billet aluminium caliper brackets
- AP Racing floating bobbin hardware
- Optional anti-rattle clips available
- Braided front brake lines
- Chemi black high-tensile bracket hardware
- Choice of 25mm Endurance Brake Pads
- Designed for BMW E9X M3 with OEM front hubs
- XC3 manufactured components covered by our Lifetime Warranty
Product Description
The BMW E9X M3 is a highly capable road and track platform, but repeated heavy braking can quickly expose the limits of the factory braking system. Long braking zones, high-grip tyres, increased vehicle speed and repeated heat cycles all place greater demand on the front brakes, leading to increased pad wear, reduced consistency and a greater risk of brake fade.
The XC3 BTCC Big Brake Kit solves this with a motorsport-derived braking package built around 368mm x 36mm floating BTCC rotors and AP Racing CP9668 endurance calipers. The larger rotor size increases thermal capacity, while the floating bobbin assembly allows controlled rotor expansion under temperature. The CP9668’s 25mm pad format gives more friction material volume than the CP9660, making it better suited to longer sessions and endurance-focused use.
Customers can choose between Anodised Grey calipers for a motorsport-style finish or Nickel Plated calipers for a premium, corrosion-resistant appearance. Optional anti-rattle clips are also available for customers who want to reduce floating rotor hardware noise while retaining the benefits of a floating disc assembly.
XC3-designed bells and caliper brackets ensure correct rotor positioning, caliper alignment and pad sweep on the E9X M3 chassis. The supplied rotors are inspected ex-BTCC components, allowing customers to access high-level motorsport hardware at a more cost-effective price point than a fully new equivalent setup. Some cosmetic marks and signs of previous motorsport use should be expected.
Why Buy from XC3
XC3 Engineering designs and manufactures key brake kit components in the UK, including our vehicle-specific rotor bells and caliper brackets. Every XC3-manufactured component is developed for accurate fitment, correct brake geometry and real-world track use.
Our manufactured components are covered by the XC3 Lifetime Warranty, giving you confidence that your brake kit is supported by proper engineering, not just supplied as a collection of parts.
All XC3 Big Brake Kit customers also receive 10% off future replacement brake consumables, including pads, rotors, bells and service hardware, helping reduce long-term running costs.
What’s Included
- 2 x AP Racing CP9668 six-piston endurance calipers
- Choice of Anodised Grey or Nickel Plated caliper finish
- 2 x ex-BTCC 368mm x 36mm floating brake rotors
- 2 x XC3 6082-T6 billet aluminium rotor bells
- 2 x XC3 6082-T6 billet aluminium caliper brackets
- 2 x AP Racing floating bobbin kits
- Optional anti-rattle clips
- 1 x pair braided front brake lines
- Chemi black high-tensile mounting hardware
- 1 x set of Endurance Brake Pads
Brake Pad Comparison Table — CP9668 Endurance Caliper
| Brake pad | Modulation / control | Bite level | Best for this customer |
|---|---|---|---|
| Pagid Racing RSL29 | Very good | Low-medium / medium | Best for customers who want consistency, long pad life, good disc life and confidence over longer track sessions. A strong all-round endurance and track day option for customers who do not want an overly aggressive pad. |
| PFC 11 | Very good | High | Best for customers who want more bite, sharper response and strong braking power. Well suited to harder track driving, sprint use and customers who prefer a more aggressive pedal feel than RSL29. |
| Ferodo DSUNO | Very good | High | Best for customers generating more brake temperature who want a serious race pad with strong torque, good control, long life and disc-friendly behaviour. A strong choice for heavy cars and demanding track use. |
Quick Customer Guide
| Customer use | Best pad choice | Why |
|---|---|---|
| Best all-round endurance option | Pagid Racing RSL29 | Consistent, progressive and confidence-inspiring over longer sessions. |
| Customer wants longest pad/disc life balance | Pagid Racing RSL29 / Ferodo DSUNO | Both are strong options for reducing consumable wear while maintaining serious performance. |
| Customer wants more bite and response | PFC 11 | Sharper initial bite and stronger pedal response than RSL29. |
| Heavy BMW / hard track use | Ferodo DSUNO / Pagid Racing RSL29 | Better suited to repeated heavy braking and high temperatures. |
| Sprint use / aggressive driving style | PFC 11 | Stronger bite and response for customers who want a race-feel pad. |
| Long sessions / endurance use | Pagid Racing RSL29 / Ferodo DSUNO | More suited to consistency, control and pad life over extended use. |
| Customer wants easiest pad to drive | Pagid Racing RSL29 | Progressive and less aggressive, making it easier to modulate. |
Big Brake Kit Customer Benefit
Customers who purchase an XC3 Big Brake Kit receive 10% off future replacement consumables, including replacement brake pads, discs, bells and hardware. This helps reduce ongoing running costs and makes maintaining your brake kit more affordable over time.
Vehicle Fitment
- BMW M3 E90
- BMW M3 E92
- BMW M3 E93
For vehicles using OEM front hubs. Professional installation required. Wheel clearance must be checked before ordering, especially with aftermarket wheels. These kits may be made to order depending on stock availability.
Versand & Lieferung
Die Lieferzeiten sind je nach Marke unterschiedlich. Wir ergänzen unsere Produktseiten gerade um genaue Liefertermine. Alle Teile werden aus Großbritannien versendet.
Für ein voraussichtliches Lieferdatum zu diesem Teil schreib bitte eine E-Mail an sales@cpcclubsport.com.
Warum CPC Clubsport?
CPC Clubsport wurde von zwei Freunden gegründet, die seit Jahren ihre eigenen BMW M aufbauen, fahren und weiterentwickeln – auf der Straße, auf der Rennstrecke und auf dem Nürburgring.
Rund 90 % unseres Sortiments haben wir an unseren eigenen Autos ausprobiert, getestet oder weiterentwickelt. Jedes Teil wird nach Qualität, Zuverlässigkeit und echtem Nutzen auf der Rennstrecke ausgewählt – und wir helfen dir gerne, das richtige Teil für dein Auto zu finden.
Brauchst du Hilfe?
Nicht sicher, ob dieses Teil passt oder welche Option die richtige für dein Auto ist? Unser Team hilft dir gerne.
Ruf uns an
07767 134595
Montag bis Freitag, 9 bis 17 Uhr (britische Zeit).
Schreib uns
sales@cpcclubsport.com
Wir antworten in der Regel innerhalb von 48 Stunden.
Damit wir dir gleich beim ersten Mal die richtige Antwort geben können, halte dein BMW Modell, den Fahrgestellcode, das Baujahr und Infos zu bisherigen Umbauten bereit.
Schau auch in unsere FAQ oder auf unsere Kontaktseite.
Das sagen unsere Kunden
Excellent
5.0 out of 5 · Based on 15 reviews
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Bought the Infinity Design S65 Modular Carbon Plenum for my E9X M3. The finish is excellent and it completely transforms the look of the engine bay. It feels like a properly engineered piece rather than just a cosmetic upgrade. Really pleased with how it looks once fitted.
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I went with the Endless MX-72 Plus Brake Pads for my G8X and they've been a great upgrade. The pedal feels positive and the pads give plenty of confidence when braking hard. They also work well for normal road driving, which was important to me. CPC Clubsport made the whole ordering process easy.
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Ordered the Solid Billet Aluminium Oil Filter Cap for my BMW. It's a relatively small upgrade, but the quality and finish are excellent and it looks much better than the standard item. It arrived well packaged and fitted without any issues. Another quality part from CPC Clubsport.
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Bought the HEL Performance Carbon Fibre Brake Pad Shims for my F80 M3. The quality is excellent and they fitted perfectly with the brake setup. Everything arrived securely packaged and exactly as described on the website. A straightforward purchase from CPC Clubsport.
Reviewed: HEL Performance Carbon Fibre Brake Pad Shims F8X (Front)
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Had the Nitron NTR R3 Coilovers fitted to my E9X M3 and the difference is impressive. The car feels much more controlled and planted, particularly through faster corners. The adjustability is a big advantage as well, allowing the setup to be tailored to how I use the car. Excellent upgrade for a car that sees both road and track use.
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Fitted the Ferodo DS1.11 Brake Pads F8X (Front) to my F82 M4 and they've been excellent. The initial bite is strong and the braking feels much more consistent when pushing the car hard. They’re particularly impressive on track where the brakes stay predictable through repeated heavy braking zones. Very happy with the purchase and service from CPC Clubsport.
Reviewed: Ferodo DS1.11 Brake Pads F8X (Front)
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Ordered the MMX Performance 15mm Wheel Spacers & Bolt Kit for my G8X. The kit arrived complete and well packaged, and installation was straightforward. The spacers give the car a much better stance without going overboard. Really happy with how the car looks and with the quality of the kit.
Reviewed: MMX Performance 15mm Wheel Spacers & Bolt Kit - G8X
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Recently fitted the SG Motorworks S65 Unfiltered Velocity Stack Kit to my E9X M3. The quality of the kit is excellent and the finish looks great once installed. The engine sounds noticeably more aggressive under acceleration and the throttle response feels really sharp. Very pleased with the upgrade.
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Picked up the Millers Oil Motorsport CFS 10W-60 NT+ for my E9X M3. Ordering was straightforward and the oil arrived well packaged and quickly. I've used Millers in the car for both road driving and track days and have been very happy with it. Good quality product from a company that clearly understands performance BMWs.
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Recently purchased the Recaro Pole Position ABE Bucket Seat for my BMW. The quality and finish are excellent, and the seat gives a much more supportive driving position when pushing the car on track. It also looks fantastic in the interior. Very pleased with the purchase and the service from CPC Clubsport.
Reviewed: Recaro Pole Position ABE Bucket Seat
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Bought the BIMMERWORLD DCT OVERFILL/DRY BREAK KIT for my BMW and it was exactly what I was looking for. The kit arrived well packaged and the components feel very well made. Installation was straightforward and it makes servicing the DCT much easier. Good product and a smooth experience ordering from CPC Clubsport.
Reviewed: BIMMERWORLD DCT OVERFILL/DRY BREAK KIT
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Fitted the AP Racing CP9660 368mm Front Brake Upgrade to my F82 M4 and the improvement in braking performance is immediately noticeable. The pedal feels much more confidence-inspiring and the brakes remain consistent when used hard. The kit looks fantastic behind the wheels as well. Very impressed with the upgrade.
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Used Endless RF-650 during a brake service on my M3. The fluid was well packaged and arrived quickly from CPC Clubsport. After getting the car back on the road, the pedal feels firm and consistent, including during some spirited driving. A quality product and good service.
Reviewed: Endless RF-650 Brake Fluid 500ml
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Recently installed the Milltek OPF/GPF Back Exhaust on my F82 M4. The fitment was excellent and the quality of the system is exactly what you'd expect from Milltek. It gives the car a much better exhaust note without becoming unbearable on longer drives. Very happy with the result and the service from CPC Clubsport.
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Bought the MMX Lowering Springs for my BMW and I'm really pleased with the result. The ride height is noticeably better without making the car uncomfortable for everyday driving. The car also feels more composed through corners. Installation was straightforward and the finished stance looks much better.
Reviewed: MMX Lowering Springs
Über CPC Clubsport
Von Fahrern, für Fahrer
CPC Clubsport wurde von zwei Freunden mit einer lebenslangen Leidenschaft für BMW Motorsport gegründet. Seit Jahren bauen, fahren und entwickeln wir unsere eigenen Autos – von der Straße auf die Rennstrecke und den Nürburgring.
Rund 90 % unseres Sortiments haben wir an unseren eigenen Autos und mit Freunden ausprobiert, getestet oder weiterentwickelt. Jedes Produkt wird nach Qualität, Performance, Zuverlässigkeit und echtem Nutzen auf der Rennstrecke ausgewählt.