Best GR Supra Brake Upgrades: A90 BBK, Rotors & Pads

The best brake upgrades for the Toyota GR Supra (A90) address the one weak point owners find on their first track day: the factory brakes run out of thermal capacity long before the B58 engine runs out of power. From the stock car, the GR Supra 3.0 leaves Tampa with 348mm front rotors and 4-piston Brembo calipers — strong on the street, but prone to fade under repeated hard stops. This roundup covers five upgrades our shop installs most, from the EBC Racing Apollo-6 380mm big brake kit down to a $113 master-cylinder brace, so you can match the fix to how you actually drive.

Why the A90 Supra Needs a Brake Upgrade

The GR Supra 3.0 already wears a capable factory brake package: 348mm x 36mm two-piece front rotors clamped by fixed Brembo 4-piston aluminum calipers (40mm and 44mm piston pairs), with a 34.4mm minimum service thickness. On the road that hardware is more than enough. The problem is heat. The A90 makes 382 horsepower in later cars and carries roughly 3,400 lbs, so a few back-to-back stops from triple-digit speeds push the rotors past their comfort zone. The result is a long pedal, glazed pads, and cooked fluid — classic brake fade.

Upgrading solves this three ways: more thermal mass (a bigger 380mm rotor), more even clamping (a 6-piston caliper), and better friction material (a track pad and fresh high-temp fluid). You do not have to buy all of it at once. Below we rank the parts by how far each moves the needle, with real prices and fitment for the 2020-2026 A90.

There is a fourth, often-overlooked variable: the fluid and lines. The factory brake fluid is a DOT 4 blend with a dry boiling point around 230°C (446°F), and once it boils the pedal goes to the floor because compressible vapor replaces incompressible fluid. That is why every serious A90 brake job in our Tampa shop starts with a flush of a high-temperature racing fluid (dry boiling point above 300°C / 572°F) and, on cars that see the track, a set of braided stainless lines to stop the rubber OE hoses from ballooning under pressure. A pad or rotor upgrade without fresh fluid leaves the weakest link in place.

Best GR Supra Brake Upgrades at a Glance

Here are the five upgrades compared side by side. The big brake kit is the top pick for drivers who see the track; pads and 2-piece rotors are the smart-money picks for spirited street and autocross use.

1. EBC Racing Apollo-6 380mm Big Brake Kit — Best Overall

The EBC Racing Apollo-6 is the most complete front brake upgrade for the A90 Supra. It steps the rotor up from the factory 348mm to a 380mm x 36mm two-piece fully-floating disc — a 32mm jump in diameter — and replaces the OE 4-piston Brembo with a lightweight aluminum 6-piston Apollo caliper reinforced with 12.9-grade steel bridge bolts. The disc rings use 48 directional internal curved vanes plus EBC's Swept Groove slots to pump air and evacuate gas and dust, and the kit ships with front braided stainless lines, high-temperature fluid, and a set of Yellowstuff or Bluestuff pads. Calipers come in black, blue, red, or yellow.

2. GiroDisc 2-Piece Front Rotors — Best Value Track Upgrade

If you want to keep the factory Brembo calipers but kill fade, GiroDisc 2-piece rotors are the smartest money on this list. They are a direct 348mm replacement for the OE front rotors, so no caliper or bracket changes are needed. The high-carbon iron rings ride on 6061-T6 aluminum hats (black anodized) and float on spring clips with Belleville washers — race-ready movement with no street rattle. Seventy-two curved internal vanes act as a centrifugal pump, drawing cooling air through the hub. Because the design is two-piece, the aluminum hats are reusable: when the iron rings wear out, you replace only the rings (D1-307), not the whole rotor.

3. Hawk DTC-60 Race Pads — Best for Track-Only Cars

A pad is the cheapest way to transform how the A90 stops on track, and the Hawk DTC-60 is the go-to high-torque race compound. It delivers strong initial bite and holds friction across a 700-1,100°F operating window, well past where the stock pads glaze. That capability comes with a caveat: DTC-60 is a race-only compound with weak cold bite and more rotor wear, so it is not recommended for daily street driving. Run it for track days and swap back — or pair it with a street pad on a second set of wheels.

4. EBC Redstuff Ceramic Pads — Best for the Street

Not every Supra sees a track. If yours is a spirited daily, EBC Redstuff is the pad to run. This ceramic-enhanced compound is engineered for street use: low dust to keep the wheels clean, strong cold bite for the first stop of the morning, and stability up to roughly 400°C (750°F). It is a straight upgrade over the OE pad for feel and dust without the noise, cold-bite penalty, or rotor wear of a race compound. Just do not confuse it for a track pad — sustained lapping will overheat it.

5. Torque Solution Master Cylinder Brace — Best Supporting Mod

The cheapest brake upgrade on this list fixes something you feel, not something you see. Under hard braking the A90's plastic master-cylinder mount and firewall flex, which shows up as a slightly soft, long pedal. The Torque Solution billet-aluminum brace ties the master cylinder to a solid mounting point, cutting that flex for a firmer, more consistent pedal and sharper modulation. At $113 it is the perfect finishing touch after a pad, rotor, or fluid change — and it installs in under an hour with hand tools.

How to Choose: Street, Canyon, or Track?

Pick the upgrade that matches your fade, not your budget. For a spirited street A90, start with EBC Redstuff pads and fresh high-temp fluid — under $250 that cures most soft-pedal complaints. For canyon and autocross use, add GiroDisc 2-piece rotors to keep the factory calipers cool and stop warping. For repeated track sessions, the EBC Racing Apollo-6 380mm kit is the answer: the larger rotor and 6-piston caliper give the thermal mass a pad alone cannot. Whatever tier you choose, the Torque Solution brace and a flush of DOT 4 racing fluid are cheap insurance for pedal feel.

One fitment note our Tampa install team repeats often: the 380mm big brake kit needs 19-inch or larger wheels for caliper clearance. The factory GR Supra 3.0 rides on 19s, so most owners clear it without changing wheels — but verify if you run a smaller track wheel.

Whatever pad you install, bed it in before you lean on it. The bedding procedure is the same on the A90 as any performance car: a series of moderate 60-to-10 mph stops followed by a lighter set, without dragging the pedal or coming to a full stop while the rotors are glowing, then a cool-down lap or slow drive. Bedding transfers an even layer of pad material onto the rotor face, which is what gives you consistent bite and prevents the uneven deposits that feel like “warped” rotors. Skipping this step is the most common reason a fresh set of pads judders on the first hard stop. Budget 20 minutes for it, and re-bed any time you switch compounds — for example, when you swap from EBC Redstuff street pads to Hawk DTC-60 race pads before a track day.