AP Racing Pro5000R CP9449 380×28mm Rear Big Brake Kit – BMW F8X M2 M3 M4 | XC3 Engineering
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Description
Looking for the full AP Racing floating-disc rear setup? View the premium CP9449 380 x 28 mm floating rear kit with genuine AP Racing J-Hook endurance discs.
AP Racing CP9449 Rear Big Brake Kit for BMW F8X M2, M3 & M4
The matching rear brake upgrade for F8X cars running an AP Racing front conversion. Built around AP Racing Pro5000R CP9449 four-piston rear calipers and the BMW 2NH 380 x 28 mm rear disc architecture, this package gives F87 M2, F80 M3 and F82/F83 M4 owners a properly matched AP Racing front-and-rear solution while retaining the factory handbrake arrangement.
Choose the kit without discs if your car already has serviceable 2NH 380 x 28 mm rear discs, or select With Brake Discs to include a new pair of Genuine BMW 2NH rear discs.
View the matching AP Racing CP9660 378 x 36 mm front brake kit
Product overview
Enhance the rear brake setup of your BMW M2 M3 M4 F8X, with the AP Racing 380mm x 28mm Brake kit by XC3 Engineering. A very popular upgrade for all F8X owners wanting to increase performance and consumable options.
Built around the AP Racing Pro 5000 R four-piston CP9449 Radical brake caliper, 380mm x 28mm Genuine BMW 2NH Brake discs and XC3 precision engineered brackets.
Designed for BMW M2 M3 M4 owners who want a higher performance rear brake setup and lower running temperatures due to larger brake pad area. This AP Racing kit from XC3 is designed exactly for this.
Key Features and Kit Contents
- 2x XC3 Precision Engineered 6082 T6 Aluminium Brackets - Anodised Black
- 2x CP9449 Pro 5000 R four-piston forged aluminium calipers
- Choice of Anodised or Nickel Plated Calipers
- 2x Genuine BMW 380mm x 28mm 2NH Brake Discs
- Choice of brake pads options
- F8X chassis specific braided brake lines
- High tensile hardware
- 500ML Motul RBF 660 Brake fluid
- Proudly Designed and Manufactured in the UK
- XC3 manufactured components covered by our Lifetime Warranty
Compatibility
- BMW M2 F87
- BMW M2 F87 Competition
- BMW M3 F80 & Competition
- BMW M4 F82 & Competition
Who is this kit for?
This rear brake upgrade is ideal for:
- F8X owners running upgraded front brakes
- Track day cars needing better rear brake consistency
- Motorsport builds requiring improved rear pad choice
- Owners wanting AP Racing hardware front and rear
- Cars running higher grip tyres
- Drivers looking to reduce rear brake temperature issues
- Customers wanting a more complete braking package rather than only upgrading the front axle
Brake Pad comparison
Brake Pad Comparison Table
| Brake pad | Modulation / control | Bite level | Best for this customer |
|---|---|---|---|
| Ferodo DS2500 | Good | Medium | Best for customers who want an approachable performance pad for light track use, fast road-style feel and occasional hard driving. A good entry-level option before moving into a more serious race compound. |
| Pagid Racing RSL29 | Very good | Low-medium / medium | Best for customers who want consistency, long life, good disc life and confidence over longer track sessions. A very strong all-round track day and club racing choice. |
| Ferodo DSUNO | Very good | High | Best for customers generating more brake temperature who want a stronger race pad than DS2500, while still keeping good control, long life and disc-friendly behaviour. |
| Ferodo DS3000 | Medium-good | High / aggressive | Best for customers who want strong bite and race performance for shorter, harder use. Better suited to sprint racing, hill climbs and aggressive track use than comfort-focused driving. |
| PFC 08 | Excellent | Medium-high, smooth | Best for customers who want smooth initial bite, excellent modulation, low disc wear and long pad life. A very strong option for endurance use, long sessions and regular track days. |
| PFC 11 | Very good | High | Best for customers who want more bite and response than PFC 08, while still keeping good release and control. Well suited to sprint use, medium-distance racing and hard track driving. |
Quick Customer Guide
| Customer use | Best pad choice | Why |
|---|---|---|
| Mostly road driving with occasional light track use | Ferodo DS2500 | The most approachable pad in this group, with a less aggressive feel than the full race compounds. |
| Best all round | Pagid Racing RSL29 | Consistent, confidence-inspiring and not overly aggressive. |
| Regular track days in a heavy BMW | Pagid RSL29 / PFC 08 / Ferodo DSUNO | Better suited to repeated hard braking, longer sessions and heavier vehicles. |
| Long sessions / endurance use | PFC 08 / Pagid RSL29 / Ferodo DSUNO | Strong choices for consistency, pad life and disc life. |
| Sprint racing / maximum bite | PFC 11 / Ferodo DS3000 | Sharper initial bite and a stronger race feel. |
| Customer wants low disc wear | PFC 08 / Pagid RSL29 / Ferodo DSUNO | Better suited to customers who want performance without excessive disc wear. |
| Customer wants the easiest pad to drive | DS2500 / RSL29 | More progressive and less aggressive than DS3000 or PFC 11. |
| Customer wants the strongest track-focused Ferodo option here | DSUNO | A more serious track and semi-endurance compound than DS2500. |
We recommend either Pagid RSL29 or Ferodo DSUNO.
Please note a comparable front Brake Pad must also be used.
Why choose XC3 Engineering?
XC3 Engineering focuses on high-quality braking components and upgrade solutions for serious BMW performance builds.
Our brake kits are developed around proven motorsport components, precision-engineered mounting hardware and proper chassis-specific fitment. The result is a brake upgrade designed to work as a complete package, not just a collection of parts.
XC3-manufactured components are designed and made in the UK and are covered by our lifetime warranty.
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.
Warranty, Shipping and Returns
Products are supplied with the applicable manufacturer warranty. We offer UK and worldwide shipping. Please refer to the live availability information and our shipping and returns policies before ordering.
Finance Options
Klarna payment options are available at checkout where eligible.
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Specifications
- Brand
- XC3 Engineering
- Product type
- Big Brake Kits
- SKU:
- sku-53218486878475
- Brake Pads
- Without Pads
- Caliper Finish
- Anodised Grey
- Brake Discs
- Without Brake Discs
You’ll earn 1799 Laps
For 1 item, including VAT but excluding delivery.
How it works
Sign in before ordering. Earn 1 Lap for every whole £1 of eligible product spend, including VAT.
Delivery, gift cards, sale-priced or discounted items and trade purchases do not earn Laps.
Purchase Laps become available 30 days after payment. Returns and refunds remove Laps earned on refunded items; pending Laps are cancelled.
This estimate follows your selected option and quantity. Checkout discounts can change eligibility. Bundle prices count once. Appstle records the final award after payment.
Sign in, open Spend Laps and choose an available reward. Redeem your Laps, copy your unique discount code and enter it at checkout using the same customer account.
Your tier makes your Laps go further: 1,000 Laps are worth £10 at Rookie, £12.50 at Contender, £20 at Pro or £25 at Champion. Choose £5 off £100, £10 off £200, £25 off £500 or £50 off £1,000 of eligible products.
Minimum spends include VAT and exclude delivery and ineligible products. Use one reward or discount code per order; it cannot be combined with any other product, order or shipping discount. Rewards apply only to eligible products and variants shown in your rewards profile. Returns and refunds remove the Laps earned on refunded items; pending Laps are cancelled. Spending Laps does not reduce your qualifying lifetime spend. Laps and standard reward codes do not expire.
Need help?
Product questions answered
Helpful answers before you order. Need more detail? Our team can help.
How do I confirm this part fits my vehicle?
Check the model, year, engine, chassis and any exclusions in the product description. Select the required option before adding to your basket. The vehicle selector helps narrow your search; contact us if your car has different factory options or existing modifications.
Can I order this for a modified car?
Existing modifications can change compatibility. Tell us which related parts are already fitted and how you use the car so we can help you check the right specification before ordering.
When will my order arrive?
Select your required option and check the live availability message above. Dispatch is when your order leaves us; delivery takes additional time and depends on the service and destination. If no verified lead time is shown, or you need the item for a fitting appointment or event, contact Nineteen72 Performance before ordering.
What is included in the price?
Check the product description, selected option and stated quantity before ordering. Images may show optional equipment or an example installation. If you need a matching pair, a complete kit or additional hardware, ask us to confirm exactly what is included.
How do I get help before ordering?
Contact Nineteen72 Performance with a link to this product and your question. For vehicle-specific parts, include your model, year, engine and any modifications that may affect compatibility.
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