GrimmSpeed 4-Piston Brake Caliper Kit (316mm Rotor) - Red - 2022-2025 Subaru WRX (VB)
GrimmSpeed 4-Piston Brake Caliper Kit (316mm Rotor) - Red - 2022-2025 Subaru WRX (VB)
GrimmSpeed
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Every product is sourced from authorized manufacturers or distributors. If something isn’t right with fitment or condition, we’ll work with you to resolve it fairly.
NO GUESSWORK,
JUST PARTS THAT WORK.
Let’s finish that car.
PRODUCT DETAILS
Designed for Performance
The stock single-piston caliper on most Subaru models performs adequately but isn’t engineered for the aggressive driving, track days, or extensive builds that many Subaru enthusiasts pursue. The GrimmSpeed 4-Piston Brake Caliper Kit addresses this gap with a purpose-built, fixed caliper setup specifically designed for Subaru performance. It delivers balanced stopping power, enhanced heat management, and consistent pedal feel to improve braking reliability and driver confidence. Developed and tested in-house under real-world conditions, this system offers a genuine performance upgrade without the hassle of sourcing used Brembos or fabricating custom brackets.
Complete Application-Specific Kits
Each GrimmSpeed brake kit is tailored to fit your specific Subaru application, pairing forged aluminum calipers with the appropriate rotor and bracket assemblies. Calipers come in your choice of Red or Gunmetal Gray anodized finishes, both resistant to heat and corrosion, while delivering a clean, motorsports-inspired appearance. This kit suits a wide range of builds from street-driven vehicles to dedicated track cars, providing the braking performance and confidence that Subaru drivers deserve.
DETAILS:
-
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
-
-
Install Instructions
Fitment
2022+ VB WRX with OEM (Non-TR / Brembo equipped) Brake Package
-
Rotor Size: 316mm x 28mm - 2022+ WRX OEM Rotor
-
Pad Type: "F40" or FMSI D968
-
Designed for use with OEM-style hubs and rotors — no knuckle swaps or custom adapters required.
*OEM x-ref - 316mm x 28mm Rotor - Part No. 26300AN010
TR / Brembo equipped models will use the 2002-2021 Grimmspeed Caliper fitment options.
WHY WE CARRY THIS
We only list parts we’d run ourselves or recommend to a friend building a real car. If it feels vague, unverified, or inconsistent, it doesn’t make the cut.
- Fitment-first mindset — no “universal” roulette
- Brand reputation matters — we favor proven manufacturing
- Support that actually responds with real answers
WHAT TO EXPECT
This is the clean path: correct fitment, clean install, and results that match the intent.
- Install-ready experience with correct mounting where provided
- Finish that holds up to real driving, not just photos
- Selections on this page drive the exact fitment shipped
TRUST, BUILT INTO THE PROCESS.
Anyone can list parts. We curate what belongs on a serious build. Our goal is simple: fewer surprises, cleaner installs, and confidence when you hit “Buy.”
Fitment checked
We prioritize vehicle-specific listings and clear selection logic so you’re not gambling on compatibility.
Brand discipline
Proven manufacturing and consistent quality matter more than hype. We bias toward what actually holds up.
Real support
If you have a question, you’ll get a human answer that helps you finish the build — not a copy-paste shrug.
Designed for Performance
The stock single-piston caliper on most Subaru models performs adequately but isn’t engineered for the aggressive driving, track days, or extensive builds that many Subaru enthusiasts pursue. The GrimmSpeed 4-Piston Brake Caliper Kit addresses this gap with a purpose-built, fixed caliper setup specifically designed for Subaru performance. It delivers balanced stopping power, enhanced heat management, and consistent pedal feel to improve braking reliability and driver confidence. Developed and tested in-house under real-world conditions, this system offers a genuine performance upgrade without the hassle of sourcing used Brembos or fabricating custom brackets.
Complete Application-Specific Kits
Each GrimmSpeed brake kit is tailored to fit your specific Subaru application, pairing forged aluminum calipers with the appropriate rotor and bracket assemblies. Calipers come in your choice of Red or Gunmetal Gray anodized finishes, both resistant to heat and corrosion, while delivering a clean, motorsports-inspired appearance. This kit suits a wide range of builds from street-driven vehicles to dedicated track cars, providing the braking performance and confidence that Subaru drivers deserve.
DETAILS:
-
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
-
-
Install Instructions
Fitment
2022+ VB WRX with OEM (Non-TR / Brembo equipped) Brake Package
-
Rotor Size: 316mm x 28mm - 2022+ WRX OEM Rotor
-
Pad Type: "F40" or FMSI D968
-
Designed for use with OEM-style hubs and rotors — no knuckle swaps or custom adapters required.
*OEM x-ref - 316mm x 28mm Rotor - Part No. 26300AN010
TR / Brembo equipped models will use the 2002-2021 Grimmspeed Caliper fitment options.
