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280mm Two-Piece Front Brake Kit for MX-5 NA & NB

Suits: Mazda MX-5 NA (1989-1998), NB (1998-2005)

Bigger front brakes for the NA and NB MX-5. Rotors, brackets, Wilwood calipers, pads and braided lines in one kit.

  • NA: 235mm to 280mm. NB: 255mm to 280mm.
  • Two-piece rotors: arrive assembled, runout tested and balanced
  • Wilwood Forged Dynalite 4-piston calipers in your choice of colour
  • Wilwood BP10 or BP20 pads, plus braided front lines

$1,631.00 AUD

Inclusions

  • 280mm Front Two Piece Rotors In stock MX2804422 $529.00 AUD
  • 280mm Front Caliper Adaptor Bracket In stock MXWIL280 $209.00 AUD
  • Front Braided Brake Lines In stock MX5X-BRKE-F $139.00 AUD
Wilwood Forged DynaLite Caliper
Wilwood Front Brake Pad Set
Extras
Overview

Why upgrade

This kit steps the NA up from 235mm to 280mm front rotors, and the NB from 255mm to 280mm, with Wilwood Forged Dynalite four-piston calipers. Everything you need for the front end is in the box.

What’s in the kit

Ready to fit

Two-piece rotors arrive with the hat and ring already bolted together, runout tested and balanced as an assembly. Always check the hat bolts are at 13–15 ft-lb before fitting, as you would with any two-piece rotor. Otherwise, it’s a direct bolt-on.

Will it fit my car?

Built for the Mazda MX-5 NA and NB. The factory backing plates come off and aren’t refitted. Got an ND? The same 280mm rotors are a direct swap on the ND 2.0L, so you only need the rotors.

Specifications

Upgrade NA: 235mm to 280mm. NB: 255mm to 280mm.
Rotors 280mm two-piece, vented, heat-treated T6-6061 aluminium hats
Hat bolt torque 13–15 ft-lb
Calipers Wilwood Forged Dynalite 120-13839, 4 stainless steel pistons
Caliper colours Aluminium, red or black
Pads Wilwood BP10 (150-8850K) or BP20 (150-20-7112K)
Brackets T6-6061 billet aluminium, hard anodised, stainless steel Heli-Coils
Brake lines HFM.Parts front braided lines, FMVSS 106, DOT, TUV and ADR compliant
Caliper fittings 1/8″ NPT to M10 x 1.0mm, 304 stainless
Bracket and caliper bolt torque 60Nm (45 ft-lb)
Position Front
SKU MXWIL280-K

Fitting

Remove the hub and the three 12mm bolts holding the backing plate, then refit the hub and torque the hub nut to 167–216Nm (123–159 ft-lb). Fit the brackets with the logo facing the inside of the car and torque to 60Nm (45 ft-lb). Fit the inlet fittings to the calipers with Loctite 262 or equivalent, then mount the calipers (spring washer first, then the flat washer) at 60Nm (45 ft-lb). Fit the braided lines with a copper washer each side of the banjo, bleed the brakes and check nothing rubs. Full steps are in the MXWIL280 install guide, and bed in the new pads using the Wilwood brake pad guide.

We recommend installation by a licensed mechanic.

Pairs with

  • Increase Diameter By 25mm or 45mm
  • High Quality Components
  • Clean, Aesthetically Pleasing Design
Free AU shipping over $250
In-stock orders dispatched within 24 hours from Melbourne.
2-year warranty
Every part covered against defects from day one. We repair, replace, or refund — your call.
30-day returns
Faulty part? Free return, full refund. Changed your mind? Full store credit, no fees deducted.
Ships worldwide
International shipping available to most countries. Rates calculated at checkout.
In the box

What's Included

  • 2× 280mm front two-piece rotor (assembled)
  • 2× 280mm caliper adaptor bracket, with bolt kit
  • 2× Wilwood Forged Dynalite 120-13839 caliper (your choice of colour)
  • 1× Full set of Wilwood front brake pads (BP10 or BP20)
  • 2× HFM.Parts front braided brake line
  • 2× 1/8" NPT to M10 x 1.0mm caliper fitting
Community

Customer Installs

Installs of this part — and similar parts in this category.

Product Information

Will it fit your car?

Find your car in the list below and add it to your garage. Every part page then checks it for you.

Fits 2 vehicles across 1 model
Mazda MX-52
NA, NA6CE, NA8C
Mazda MX-5 NA B6-ZE · BP-ZE · 1989–1998
1989–1998
NB
Mazda MX-5 NB B6-ZE · BP-4W · BP-Z3 · BP-4W turbo · 1998–2005
1998–2005
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.
BP10 suits street use. BP20 suits street and track use.
The factory backing plates are removed and not refitted. The install guide walks through every step.
The ND doesn't need the brackets or calipers. Our 280mm two-piece front rotors are a direct swap on the ND 2.0L.
Yes. They arrive with the hat and ring already bolted together, runout tested and balanced as an assembly. Always check the hat bolts are at 13–15 ft-lb before fitting, as you would with any two-piece rotor. Otherwise, it's a direct bolt-on.
That's where the rotor was balanced. Material is machined from the outer edge until it's in balance, then runout is checked before it's packed.
Yes. Keep your aluminium hats and fit replacement two-piece rotor rings. Choose the 280mm Mazda MX-5 version.
Wilwood calipers are built for high temperatures, where dust boots can melt or go brittle. Without them it's easier to inspect the caliper, and pad changes work the same way: wash away any debris, push the pistons back and fit the new pads. Read more.

Our Story

We weren't always HFM.Parts; we were Holford Motors. Our brand's identity was forged not in an office, but on the local circuits in the high-stress world of competitive drifting. Our ultimate testbed was our Nissan S14 Drift car, driven by champion Luke Fink. Pushing that car to its limits exposed a crucial truth: achieving genuine, repeatable performance meant relying on components that simply weren't available affordably on the market.

The HFM.Parts brand was born

We made the commitment to design and manufacture the uncompromising, high-quality performance parts that we, as competitive racers, demanded ourselves. Every component you see is a solution conceived, tested, and proven by us. When you choose HFM.Parts, you are investing in components engineered by racers, for racers, ensuring your vehicle delivers its maximum performance potential.

Reviews
5.0
out of 5
5 ★
26
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Customer Reviews

Based on 27 verified reviews

  1. Lachlan Reed
    Oct 6, 2024
    Bought this conversion kit for my RWD Stagea running 32GTR sumitomo callipers, everything fit perfectly and as it should, very happy with the quality of the items received.
  2. Tom ✓ Verified
    Aug 12, 2024
    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!
  3. Blake Morgan ✓ Verified
    Dec 21, 2023
    We are currently running the 2 piece brake discs on our endurance race car and they are doing a great job. The weight saving, cooling, reduced replacement cost and the look are all great points as to us returning for more. The team at HFM are knowledgeable on there product and are commited to working through the intricacies of racing with us. GREAT JOB!!
  4. Blake Morgan ✓ Verified
    Dec 21, 2023
    Using the 2 piece rotors on our endurance car and so far the results are good. Huge weight difference, better cooling, cheaper rotor replacement,and the look is just a bonus. The HFM Team are great with there backup service and comitment to working on some of the more intricacies of a race car. GREAT JOB.
  5. Massimiliano Cassoni ✓ Verified
    Aug 22, 2023
    Fitted these on my 22 brz.. very happy with the results. I cooked my projuct mu pads in 2 session at luddenham. With these I was running consistent laps with absolutely no brake fade. And extremely fast shipping
  6. William Wright
    Jan 18, 2023
    Bought these rotors as a replacement for my OEM ones which were warped when I bought the car. After a slight mix-up with a separate distributor (which Dom was more than happy to rectify, no questions asked), I fitted them yesterday. Installation was easy and they fit perfectly. They're noticeable lighter than stock, so much so that I can feel it in the steering of the car. They have very tight tolerances between the caliper and the rotor, and the materials feel beautiful. Clearly an extraordinarily well-made rotor. Bedded in some new pads and the rotors last night and they feel amazing. Look the part too, which is always a plus! Can't wait to try them out in khanacross events and track days later this year, but from the looks of them they'll more than hold up! Can't wait to check out the rear rotors you guys make when they come out! Thanks!
  7. Damien ✓ Verified
    Oct 24, 2022
    Easy install works perfectly on my track car
  8. Stuart Jackson ✓ Verified
    Aug 10, 2022
    Very nicely made up kit, my only issue was being 2 flat washers short in the sealed bag "no biggy had some spares in my garage" and the pre assembled 2 piece rotors bots not being anywhere close to the recommended torque specs of 13-15 ft lbs so make sure you checked them! Paired this kit with a new set of Project Mu HC800s and have only had time to do the bed in process so far. But everything feels great. Can't wait to see how they go at my next time attack day.
  9. Jay ✓ Verified
    Jun 5, 2022
    Purchased this brake set because of their price point. Turns out they’re an amazing set of brakes, improved over stock stopping power by miles. 2 piece rotors are also a nice treat for the calipers. The Wilwood calipers looks great and reduced much weight vs stock. Would recommend.
  10. Ben Whitaker ✓ Verified
    Jun 3, 2022
    Ive been tracking my car for almost 2 years, this kit has seen about 20 track days. Easy to install and even easier to maintain. Before the HFM rotors I was using DBAs that used to warp every 3-4 track days. The two piece rotors have lasted 8 track days so far and have so much more in them. If anyone is thinking about this product, trust me get it. Completely changes the vehicles braking ability, and still to this day never had any brake fade. HFM keep the good quality throughout all their products and looking forward to purchasing more products from them!
  11. Greg Kruse - GK Tech ✓ Verified
    Apr 1, 2022
    These rotors had no brake fade with over 500km's of back to back driving during a Grip Day (circuit). Brakes never got a chance to cool down and at the end of the day there was no lip on the rotor. These rotors were fit to a Nissan 370Z with Forza FP3 Brake Pads and Hankook RS4 tyres.
  12. Andrew Clifton ✓ Verified
    Sep 20, 2021
    Great quality and fitment, super fast postage. Very happy
  13. Austin Mason ✓ Verified
    Sep 10, 2021
    Super stoked with this rotor kit, easy install and braking performance is noticeably better. Plus they look awesome!
  14. Austin Mason ✓ Verified
    Aug 24, 2021
    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
  15. Steve ✓ Verified
    Aug 9, 2021
    Compared to the front upgrade, this is an absolute breeze and the front isn't even that much of an issue. I found myself cleaning up the hub and surrounding areas more than I did installing the adaptor - a testament to the ease of the install. Super straightforward install, as simple as the video makes it out to be. Love the look of the slotted design and the size really fills out my wheel. From what I can discern, it has similar braking properties to factory, but the real difference will be under constant braking. Great piece of gear, great work HFM!
  16. Steve ✓ Verified
    Aug 2, 2021
    Opting to keep my 17" wheels, this upgrade was the perfect choice. For a car that endures regular light track work and spirited driving this kit is ideal. The stock brakes are more than capable of pulling up my - and arguably most - 32 GTR, however they suffer and fade from consistent use. These rotors now provide less brake fade due to the larger 2-piece rotor dissipating heat more efficiently and effectively. The unboxing was great, all the parts came clearly separated allowing for an easy install and the rotors came assembled which was superb. The install felt tedious, though this was due to me constantly test-fitting the adaptor as I shaved the knuckle - trying to shave as little as possible. The install video was an excellent guide and helpful with torque settings too! This was a no brainer for my application. The rotors are about 1kg lighter than the stock 296mm equivalent which is 1 less kilogram of unsprung weight either side which is a great improvement. They are also very aesthetically pleasing. Greater braking endurance, reduction in unsprung weight, extremely cost effective compared to going a true BBK. This is an excellent upgrade for anyone wanting to retain the stock caliper but wants to enhance performance. After considering the other options (Evo Brembos, R33/34 and even R35 GTR Brembos and Endless/Project Mu), this came out on top. Great piece of gear HFM, keep up the great work! These brakes fit under R33 GTR Wheels, 17x9 +22 Advan SA3R's and 17x9 +22 Sparco Crimson.
  17. David Robinson ✓ Verified
    Feb 2, 2021
    Every thing fitted perfectly looks cool amazed how they can make for price I paid
  18. Andrew Finn ✓ Verified
    Oct 6, 2020
    very good and great repsonse times, product feels good
  19. Rodney petrovic ✓ Verified
    Aug 26, 2020
    Very good would go through them again
  20. garry stanton ✓ Verified
    Jul 20, 2020
    yeah great install havent used them yet but sure they will be great
  21. Dean Simonovic ✓ Verified
    May 13, 2020
    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.
  22. Riley McConaughey ✓ Verified
    Apr 29, 2020
    Hfm.parts has done it again with their excellent customer service! And quality of product. Thank you
  23. Robert Bell ✓ Verified
    Apr 26, 2020
    N/S, still haven't looked at it yet.
  24. Shaun Ewing ✓ Verified
    Mar 24, 2020
    Overall an easy install, everything works great and looks fantastic!
  25. Stephen Henley ✓ Verified
    Dec 24, 2019
    Excellent service, fast freight time, will most definitely use again.
  26. sami l. ✓ Verified
    Sep 6, 2019
    Very good upgrade choise.
  27. Ibrahim A. ✓ Verified
    Jul 18, 2019
    Good soize, 2 seconds stop. Not bhed
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HFM.Parts 280mm Two-Piece Front Brake Kit with Wilwood Forged Dynalite 120-13839 Calipers for Mazda MX-5 Miata NA / NB
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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

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