📦 Free Postage Australia wide on order $250+
🌏 Worldwide Postage rates at Checkout
🤑 Fit Now, Pay Later. Afterpay + Klarna

300mm Rear Brake Upgrade Kit Suits: S13, S14, S15

300mm Rear Brake Upgrade Kit

From: $ 449.00

Customise your Product

Inclusions

300mm Rear Rotors Suits: S13, S14, S15

$ 270.00
In Stock

300mm Rear Rotor Caliper Adapter Bracket Suits: HFM 300mm Rear Rotors

$ 179.00
In Stock

Optional Extras

Would you like to add S Chassis Rear Braided Brake Lines?

S Chassis Rear Braided Brake Lines

$ 103.00
Max Available:
Secure Transaction
Fast Postage
Tracked Shipping

Upgrade your braking performance with the HFM.Parts 300mm Rear Rotor Kit, designed to deliver a big brake feel without the big price tag. This kit increases the rotor size by a significant 42mm over the OEM standard, giving you enhanced stopping power and a bold, performance-inspired look.

The kit includes our Australian-designed and developed caliper adapter set, allowing you to retain your OEM caliper for a seamless, cost-effective upgrade. The precision-engineered adapters ensure perfect fitment, making this a practical and affordable big brake solution for your build.

The rotors feature a striking slotted design that matches HFM.Parts 324mm front rotors, providing not only a cohesive appearance but also improved braking functionality. The curved indentations enhance pad cleaning and ventilation, while the black painted hub resists rust, keeping your setup looking sharp and performing reliably.

Key Features:

  • 42mm Rotor Size Increase: Upgrades the rear rotors to 300mm for enhanced stopping power.
  • Custom Caliper Adapters: Use your OEM calipers with our precision-designed adapter set for an affordable big brake upgrade.
  • Improved Performance: Slotted design for better cleaning, cooling, and consistent braking performance.
  • Rust-Resistant Finish: Black painted hub protects against corrosion and complements the rotor’s performance look.

Replacement Rotors Made Easy
We’ve got you covered—when it’s time to replace your rotors, you can purchase HFM.Parts 300mm Rear Rotors separately without the adapters at an unbeatable price.

Replacements

We stand by our products. You can purchase replacement HFM.Parts 300mm Rotors without the adapters for a great price, ready when you need them.

Compatibility

Requirements & Notes:

Minimum of 16″ Wheels
Compatible with 4 & 5 Stud Hubs

Key:
Fits
Fits with Minimum Requirements
Does Not Fit
Fitment Make Model Production Requirements
No vehicles found. Try a different search or contact us for help.

In the Box

Here's everything included in your order, so you know exactly what to expect.

1x Pair of HFM.Parts 300mm Rear Rotors
1x Pair of HFM.Parts Caliper Adapters
High Tensile Nuts & Bolts for Fitment

FAQs

Q. Will this fit my vehicle? A. We have only confirmed fitment for the vehicles mentioned under compatibility. If your vehicle is not listed, then we don't know if it fits. Q. If you stop making these rotors, is there anywhere else I can get them from? A. To our knowledge, HFM.Parts 300mm Rotors are unique to HFM.Parts. We will continue to produce these rotors and any other products as long as there is a demand. Q. Will these fit my OEM S13, S14, S15 wheels? A. No, your OEM S13/14/15 wheels are 15″. The minimum wheel requirement is 16″. Q. Will my original brake pads fit this sized rotor? A. Yes, both OEM Caliper & Brake Pads are compatible with this rotor. Q. I have an aftermarket caliper, can I still use this rotor kit? A. No, this brake kit has been designed to suit your OEM caliper. We cannot confirm if it will also suit other calipers. Q. If I break/damage/misplace the adapter, can I get a replacement? A. Yes! You can purchase our adapters on their own under the adapters category. Q. What material are the adapters made from? A. Our adapters are made using high quality T6-6061 Billet Aluminium. Q. Do I have to modify any brake components to use this kit? A. Yes, you will need to cut and straighten the backing plate/dust cover. Q. Why doesn’t the brake pad cover the entire surface of the rotor? A. This kit works by spacing out your existing calipers, which in turn, the brake pads position will follow, to accommodate for the larger rotor. There are no brake pads (that we’re aware of) that will fit within the original caliper and cover more surface area. Q. Are these rotors directional? A. No, you can install them on either side of your car without affecting performance.

Install Guides

 
Disclaimer

Modifying vehicles is a specialist task and requires the knowledge and experience of competent individuals to be conducted safely.
We recommend this product be installed by a competent person. Instructions are given with every order where available, however, If you would like a copy prior to ordering, you're welcome to contact us: Go to Contact Page


hfmparts rotor
The Rotors

Our rotors are designed to enhance braking performance compared to stock options, offering a more responsive feel which can reduce brake fade during demanding driving.

The key to this improvement is a larger diameter design, which increases the overall surface area for better heat dissipation. This upgrade is particularly attractive as it retains your stock calipers (unless mentioned otherwise), keeping the cost down while providing a noticeable improvement in braking performance.

Internal Structure

Our vane design compliments on both structural integrity and heat dissipation. We’ve positioned our vanes to disrupt airflow across the rotor surface, breaking up the boundary layer of hot air. This turbulence promotes efficient heat transfer which reduces brake fade and ensures the drives has consistent stopping power.

hfm parts rotor veins
hfm parts rotor slot design
Slot Design

Our rotors feature a custom slot design that’s consistent across our entire range, ensuring a uniform look and optimal performance on all fronts. Slots actively channel away heat, debris, and gasses from the braking surface.


Customer Photos
We're yet to upload our customers photos.
Want to be featured here? Send in your best shots: sales@hfm.parts

5 Stars
Customer Reviews
5 reviews
    I recently upgraded my Nissan S15 with these brake rotors and caliper adapters, and I am thoroughly impressed with their products and service. The materials used are high-quality, and the fitment and precision of their product was perfect! Originally I just wanted to enhance the aesthetics of the car with bigger brake rotors! But after the install of their front and rear rotor upgrade kits along with fresh brake pads, I noticed a significant improvement in braking power moving from old worn disks to theirs, not to mention better an overall driving experience. The installation instructions provided were clear and easy to follow. Even if you're not a seasoned mechanic like me, you should be able to install these with minimal hassle using their installation video’s! They are great value for money, I highly recommend HFM part’s to anyone looking to upgrade their braking system for better looks and performance!
    Tom
    Installed these on my s15 and couldn’t be happier, huge upgrade from the standard rotors, they look great and perform even better. Install was pretty straight forward Would definitely recommend
    Austin Mason
    I did have to grind off a little caliper metal on drivers side only, the cap head bolt interfered with it, not a big deal, I guess there is variance in the stock nissan caliper forgings, once assembled its all been rock solid for the 2 weeks of daily flogging I mean driving the car gets.
    Dean Simonovic
    Very good upgrade choise.
    sami l.
    Good soize, 2 seconds stop. Not bhed
    Ibrahim A.
Leave a Review
Search