Paragon Performance Brakes for Subaru WRX & STI

Paragon Brakes Australia: Big Brake Kits and 2-Piece Rotors for WRX / STI

Chicane Australia is a Paragon brakes dealer Australia enthusiasts trust for WRX and STI brake upgrades that actually get driven hard. We've fitted this range to cars running Sydney street duty through to full track days at The Bend and Sydney Motorsport Park, and Paragon's own pedigree includes 25 Hours of Thunderhill, which tells you what the metallurgy and caliper design are built to survive. The WRX and STI chew through OEM rotors under repeated heavy braking: cracking, warping, glazing. Paragon's answer is a proper big brake kit range built for exactly this.

The core of the WRX/STI lineup is the PA055, a 4-piston forged monoblock caliper on 326 x 30mm 2-piece front rotors, fitting GDB/GRB/GVB/VAB STI and VB WRX (Brembo swap spec). Step up to the PA015 or PA035 6-piston kit on 340mm rotors for VAB/VAF STI and VB WRX where sustained thermal load is the priority, time attack, hillclimb, and long track sessions. The PA025 rear kit balances either front setup so brake bias stays correct once you've upgraded the front. All Paragon 2-piece rotors here use replaceable friction rings on a floating aluminium hat, so you're not buying a whole new rotor every time the ring wears out. Titanium shims are available separately for anyone chasing quieter, cooler-running pad contact on track.

Not sure whether you need a full BBK or just a rotor and pad upgrade? Get in touch and we'll talk through your build.

Shop by Vehicle

Paragon for Subaru WRX / STI (GDA, GDB, GRB, GRF, GVB, GVF, VAB, VAF, VB)
Paragon for BRZ / 86 / GR86
Paragon for Honda Civic Type R (FK8/FL5)
Paragon for BMW M2 / M3 / M4

Shop by Product Type

2-Piece Brake Rotors
Big Brake Kits (PA055, PA015/PA035, PA025)
Brake Calipers
Brake Rotors (1-piece)
Anti-Squeal Shims & Titanium Shims
Caliper Seal / Rebuild Kits
Replacement Rotor Rings

Why Paragon for WRX / STI

The WRX and STI are AWD, turbocharged and heavy on the front axle, exactly the combination that punishes OEM rotors on a track day. Paragon's high-carbon cast iron friction rings and floating aluminium hats cut unsprung weight over factory rotors, and the isolated hat keeps heat away from the wheel bearing during sustained hot laps. Paragon's own competition record, including 25 Hours of Thunderhill, is the same engineering that ends up in these road kits. For Australian conditions, where summer track days run hot, that thermal margin matters more than most spec sheets let on. Serviceable rings mean lower running cost across multiple seasons, which is the real answer to "are 2-piece rotors worth it" for anyone doing more than a handful of track days a year.

Fitment & Installation

PA055, PA015/PA035 and PA025 kits are caliper-and-rotor packages designed to bolt to factory hub and knuckle mounting points, but wheel clearance is the first thing to check: PA055 generally clears 17"/18" wheels depending on offset, while the 6-piston PA015/PA035 typically needs 18"+ wheels. If you're keeping the factory Brembo caliper and just upgrading the rotor, confirm whether your STI has the 4-pot (GDB/GRF/GVF/VAB) or later 6-pot (VAB/VAF) front Brembo, since 2-piece rotor specs differ between them. Spec-C and Type RA-R variants can have non-standard factory brake specs, so confirm your exact chassis code with us before ordering. Brake lines, master cylinder and ABS all stay factory on a rotor-only upgrade.

Pair with the rest of your build

DIXCEL brake pads for WRX / STI
KORSH exhaust for WRX / STI
Blouch turbo upgrades for WRX / STI
Hardrace suspension components
Camber and alignment guide for WRX / STI
Do You Need a Big Brake Kit? Complete BBK Guide
2-Piece Rotors Explained: Are They Worth It?
Titanium Brake Pad Shims: Do They Actually Work?

FAQ

Does the PA055 fit my STI's wheels? Generally yes on 17" and most 18" wheels, but offset and spoke design can cause clearance issues. Send us your wheel specs before ordering.

Do I need a big brake kit, or will 2-piece rotors on my factory caliper be enough? For street and light track use, 2-piece rotors and a good pad are usually enough. A BBK earns its keep once you're doing regular track days and want more thermal margin and pad area.

Can I run Paragon rotors with DIXCEL pads? Yes, that's a common and proven combination on WRX and STI builds we put together.

Is there a warranty on Paragon products sold through Chicane? Yes, genuine Paragon warranty applies. Contact us for details specific to your part.

Do you ship Paragon big brake kits Australia-wide? Yes, we ship nationally.

Need help matching a Paragon setup to your exact WRX or STI chassis code? Contact us.