PARAGON 4-Piston Front Big Brake Kit for Subaru WRX / STI GC/GD/GR/VA
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Description
PARAGON 4-Piston Front Big Brake Kit – Subaru WRX / STI (GC/GD/GR/VA)
Application: Subaru Impreza WRX (GC/GD/GR/VA) 1992–Present | Subaru Impreza WRX STI (GC/GD/GR/VA) 1994–Present | Part Number: PBK.06.063.330.280.TL.03.02.Px.F.R5
The Paragon 4-Piston Front Big Brake Kit is engineered for Subaru WRX and STI owners who demand consistent, fade-free braking under sustained high-load conditions. Whether you're attacking a circuit, running a hillclimb, or simply want a significant upgrade over the factory setup, this kit delivers the thermal capacity and pedal feel to match your driving ambitions.
At the heart of this kit is the PA055 4-piston monobloc caliper, available in your choice of Mil-Spec Hard Coat Anodizing or ENP (Electroless Nickel Plating) finish. Both finishes deliver exceptional durability and corrosion resistance — Hard Coat Anodizing offers a classic matte appearance ideal for track environments, while ENP provides a bright, uniform nickel finish with outstanding chemical and wear resistance. The 330x28mm fully-floating 2-piece rotor runs up to 30% cooler than OEM rotors thanks to directional ventilation vanes — dramatically reducing the risk of brake fade during repeated hard stops.
Piston sizes are optimised for each application, designed to work flawlessly with the OEM ABS system and brake master cylinder, and fully compatible with OEM rear brakes. No proportioning valve adjustments or brake bias changes required.
Paired with the R5 Track & Competition brake pad compound, this kit delivers confidence-inspiring heat resistance during extended sessions — with optimum bite, modulation characteristics, thermal stability, and durability. Recommended for Street / Track use. Supplied as a complete pre-assembled axle set, ready to bolt on with no cutting, drilling, or fabrication required.
Kit Includes:
- One pair of Paragon PA055 4-piston calipers (choice of Mil-Spec Hard Coat Anodizing or ENP finish)
- One pair of Paragon fully-floating 2-piece rotor assemblies with hard anodized 6061-T6 aerospace grade aluminum hats, stainless steel bobbins, and anti-rattle clips
- One set of Paragon P3 "Street/Track" semi-metallic brake pads (manufactured by Winmax Japan; other compounds available at additional cost)
- One pair of caliper mounting brackets and all necessary hardware
- One pair of Goodridge DOT approved stainless steel braided brake lines
- One set of caliper anti-rattle clips
- Detailed installation manual
Key Features:
- Paragon PA055 4-piston calipers — available in Mil-Spec Hard Coat Anodizing or ENP (Electroless Nickel Plating) finish
- Fully-floating 2-piece rotors with directional ventilation vanes — runs up to 30% cooler than OEM rotors
- Hard anodized calipers and rotor hats for increased resistance to wear and discoloration under extreme track conditions
- Piston sizes optimised for each application — designed to work flawlessly with OEM ABS and brake master cylinder; compatible with OEM rear brakes
- Confidence-inspiring heat resistance during extended sessions — optimum bite, modulation, thermal stability, and durability
- Recommended usage: Street / Track
- Complete pre-assembled axle set — bolt-on fitment, no modification required
Specifications:
| Rotor Diameter | 330mm |
| Rotor Thickness (New) | 28mm |
| Rotor Thickness (Min.) | [TBC] |
| Caliper | PA055 4-Piston Monobloc |
| Caliper Finish | Mil-Spec Hard Coat Anodizing or ENP (Electroless Nickel Plating) — select your preference |
| Brake Pad Compound | R5 Track & Competition |
| Rotor Construction | Fully-floating 2-piece |
| Hat Material | Hard Anodized 6061-T6 Aerospace Grade Aluminum |
| Bobbins | Stainless Steel |
| Vented/Solid | Vented – Directional Ventilation Vanes |
| Position | Front |
| Brake Lines | Goodridge DOT Approved Stainless Steel Braided |
| Fitment | Bolt-On – No Modification Required |
| Recommended Use | Street / Track |
Cross Reference:
| OEM (Subaru) | [TBC] |
| Brembo | [TBC] |
| EBC | [TBC] |
Sold as a complete front axle kit (caliper pair, rotor pair, brake pads, Goodridge brake lines, mounting hardware, and installation manual).
Lead times may apply. Contact us at iilumolab.com.au/pages/contact for availability and estimated delivery timeframes.
If you're unsure whether this will fit your vehicle, contact our team of experts via email at hello@iilumolab.com and send through a few photos of the car for us to verify fitment.
Installation
We always recommend professional fitment for guaranteed satisfaction. If you're wanting a hassle-free installation, feel free to contact our friendly team as we offer installation services in-store at our Melbourne workshop. For more details, contact us here.
Note
Upon receiving the item, please ensure that the part is indeed the correct item you have ordered. This can be achieved by checking labels on the packaging. Please also ensure a proper test fit of the item is conducted prior to paint and/or installation. Returns/Warranty claims will be voided if the item has been tampered with, or is no longer in resalable/new condition.