SKU: 57125911874

AP Racing CP9449 Pro 5000R 378mm Rear Brake Kit – BMW G8X M2, M3 & M4

Sale price$1304.52 Regular price$1449.47
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Ships within 48 hours · Estimated delivery Aug 14 - Aug 19

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Description

AP Racing CP9449 Pro 5000R 378mm Rear Brake Kit – BMW G8X M2, M3 & M4The AP Racing Pro 5000R Rear Big Brake Kit (378x32mm) for the BMW G8X platform has been developed to complement high performance front brake systems and deliver improved rear braking balance, heat capacity and braking consistency for fast road, track day and motorsport applications. Designed as a direct bolt on solution, the kit provides a substantial increase in thermal management and durability over the factory rear braking system. Using large

The AP Racing Pro 5000R Rear Big Brake Kit (378x32mm) for the BMW G8X platform has been developed to complement high-performance front brake systems and deliver improved rear braking balance, heat capacity and braking consistency for fast road, track day and motorsport applications. Designed as a direct bolt-on solution, the kit provides a substantial increase in thermal management and durability over the factory rear braking system.

Using large 378x32mm two-piece floating rear discs, lightweight aluminium bells and precision-engineered mounting brackets, the system improves heat dissipation and rear braking stability during repeated heavy braking. The increased rotor mass and floating disc design help reduce temperature build-up under prolonged track use, maintaining more consistent braking performance throughout demanding sessions.

This kit utilises high-quality aftermarket two-piece discs/rotors, providing a durable and cost-effective solution for track-focused vehicles. At Clubsport Garage we have extensively tested these rotor assemblies on our own F87 M2 Competition track car with excellent results in terms of consistency, durability and overall performance. Several customers who previously ran AP Racing rotor assemblies have also moved to this setup and reported similarly positive feedback, making them an attractive option for reducing long-term running costs without sacrificing braking performance.

AP Racing Pro 5000R calipers do not utilise dust seals. This motorsport-focused design allows reliable operation at significantly higher temperatures than conventional road calipers. Vehicles used regularly on the road may require more frequent inspection and cleaning, particularly during harsh weather conditions.

An optional anti-rattle pad retention spring kit is available separately for customers wanting to minimise brake pad movement and reduce unwanted noise during everyday driving.

The kit is also available with an optional Belfe electronic handbrake conversion, allowing customers to retain electronic parking brake functionality. If the Belfe kit is not selected, the vehicle will lose parking brake functionality, which may not be a concern for dedicated track or race vehicles.

Further information below.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 57125911874

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Kcm228
Waukegan, US
★★★★★ 5
Helps repair skin barrier
Style: Updated Formula
This stuff is amazing! It has drastically helped repair my skin barrier. I had a flare up of dermatitis right before an important event and this helped clear it!
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Reviewed in the United States on May 21, 2026
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KBL
Pawtucket, US
★★★★★ 5
Great Product
Style: Updated Formula
I will purchase this again. very gentle on the skin and moisturizes.
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Reviewed in the United States on February 14, 2026
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Verified Purchase
JR
Battle Creek, US
★★★★★ 4
Like it but expensive
Style: Updated Formula
I like it. It does what it says. I just don’t like the price.
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Reviewed in the United States on May 16, 2026
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Kira Krall
Waukegan, US
★★★★★ 5
returned- for now
Style: Updated Formula
I was using the lotion version of this for about a year, then went to the balm for more hydration. However, it seems to be breaking me out. I think because it's spring, im not needing as much occlusion as i did during winter. I'm gonna go back to the lotion formula, then pick this up again next winter. It is a little hard to spread, but I spray the avene mineral water on, let it dry slightly, and press the balm into my skin when its still wet. That helps thin the balm just enough to rub in. Otherwise, it can actually feel kind of rough!
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Reviewed in the United States on April 2, 2026
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tortoisegirl
Boise, US
★★★★★ 5
Impressive
Style: Updated Formula
Nice thick cream! I even saw results (skin improvement) within days. I like this way better than their Cicalfate+, as it’s easier to rub in, less greasy, and doesn’t have the water vs cream separation issue. I’m not a huge fan of the pump top for this one, but at least it’s a tube instead of a solid canister (where you can’t see how much is left or get to the last bit).
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Reviewed in the United States on February 26, 2026

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