GrimmSpeed 4-Piston Brake Caliper Kit For BRZ/GR86 (326mm Rotor)

Color
$1,299.00
$1,299.00
Shipping calculated at checkout.

I have read Axion's store policies on returns, refunds, and cancellations. I also understand that when marked on the product page, special order items may not be canceled for any reason.

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FITS:

  • 2022+ Subaru BRZ
  • 2022+ Toyota GR86

The stock single-piston caliper found on most Subaru platforms gets the job done — but it wasn’t designed for the kind of aggressive driving, tracking, or build evolution most GrimmSpeed drivers pursue. That’s where our 4-Piston Brake Caliper Kit comes in.

Purpose-built for Subaru performance, this fixed caliper setup brings balanced stopping power, improved heat management, and consistent pedal feel to your favorite chassis. Designed in-house and tested under real-world conditions, the system offers a true performance solution — with no need to chase down used Brembos or deal with custom brackets.

Each kit is application-specific, pairing our forged aluminum calipers with the correct rotor and bracket configuration for your setup. Calipers are available in your choice of Red or Gunmetal Gray anodized finishes, both designed to withstand heat and resist corrosion while delivering a clean, motorsports-ready look. From street builds to track cars, this is the braking confidence your Subaru deserves.

Key Features

  • Forged 6061-T6 Aluminum Caliper Body – 2-piece design, hard anodized for strength and corrosion resistance
  • Dual Piston Setup – 44mm primary and 41mm secondary pistons provide even pad pressure and reduced taper
  • Heat-Managed Pistons – Type 3 hard anodized and vented for superior thermal performance
  • Lightweight Design – Approximately 9.9 lbs per corner with bracket and hardware
  • Pad Compatibility – FMSI D1001 or D968 (varies by application)
  • Rotor Compatibility – Works with commonly available Subaru OEM and STI rotors
  • No Brake Lines Required – Compatible with factory lines (new lines may be recommended depending on vehicle)

What’s Included

  • (2) GrimmSpeed 4-Piston Brake Calipers (choose Red or Gunmetal)
  • (2) Vehicle-Specific Billet 4140 Steel Caliper Brackets
  • Full Hardware Kit:
    • Bridge bolts
    • Banjo bolts
    • Crush washers
    • Bleeder dust caps
    • Caliper guide pins
    • Security cotter pins
    • Caliper spring bridges + bolts
  • Printable 1:1 Fitment Template
  • Install Instructions

Fitment

 

  • Subaru BRZ
  • Toyota GR86/FRS

  • Rotor Size: 326mm

  • Pad Type: F50 (FMSI D1001)

  • Designed for use with OEM-style hubs and rotors — no knuckle swaps or custom adapters required.

*Subaru OEM Rotor - 5x100 326x30 - Part No. 26300FE001

GrimmSpeed 4-Piston Brake Caliper Kit For BRZ/GR86 (326mm Rotor)

$1,299.00

How fast is shipping?

Most orders placed on a weekday before 1pm EST will ship out the same day. Otherwise, it is common for parts to ship in 2-3 days from order date. Please note that both of these exclude special order items, which are clearly marked on product pages.

What is the returns policy?

Most products sold by Axion Industries LLC are covered by our Standard Return Policy and may be returned within 30 days of the original invoice date for a refund. Please note that a restocking fee will apply (see "Refunds Policy" in FAQ).

All returns require written approval from Axion Industries LLC. Original Shipping and return shipping charges are strictly non-refundable. For more information regarding our shipping refund policy, please refer to the "Refunds Policy" on FAQ.

Does it come with a warranty?

Axion Industries LLC does not offer any type of warranty coverage for defective products except those that are manufactured by us. However, the majority of the products available through our website are covered separately under a manufacturer's warranty.

If you recently purchased a product from Axion Industries LLC and are concerned about the fitment or performance of your item, please contact us for assistance.

Our customer service representatives can provide limited support, advice, and assistance identifying the possibility of any manufacturer defects. If we suspect your product does have serious defects, our customer service department can serve as a contact with the manufacturer to help arrange a warranty inspection and, if applicable, any necessary repairs or replacement shipments.

If you wish, you may also contact the manufacturer directly for information regarding product eligibility and specific terms and conditions of warranty coverage.

What happens if I want to cancel?

Unfulfilled, cancelled orders will require a 10%-30% cancellation fee unless you choose store credit (a 5%-15% cancellation fee will apply in this case). This fee is to:

  1. Recover the processing fees for both the order you placed and the order
    you canceled.
  2. Cancellation fees imposed by the manufacturer, should the part be coming
    straight from them. OR
  3. Restocking fees, since the part now has to be resold.

The following may NOT be canceled:

  • Orders that are already fulfilled – the Returns Policy will apply.
  • Pre-orders - the Returns Policy will apply.
  • Special Order items that were approved for sourcing by the customer.
  • Items that are on sale and labeled "final sale" during that sale period.

Please see "Order Cancellation" under FAQ for more.