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SKU: SC4603 | UPC: 889906815815
Power Stop 15-21 Subaru WRX Front Semi-Coated Rotor Kit
Power Stop SC4603 front brake kit upgrades braking on 2015-2021 Subaru WRX Base and Premium models with drilled and slotted rotors paired to Z23 carbon-fiber ceramic pads. This direct-fit assembly fits multiple Subaru vehicles including Legacy, Outback, and Tribeca for reliable performance under hard driving. Drilled holes and slots clear gases and water while reducing fade for consistent stops.
Key Features
- Drilled and Slotted Rotors: 11.57-inch diameter x 0.94-inch thick high-carbon rotors vent heat, gases, and debris to maintain bite in wet or repeated stops
- Z23 Carbon-Fiber Ceramic Pads: Shims, slots, and chamfers reduce noise, dust, and vibration with strong initial bite and fade resistance up to high temperatures
- Semi-Coated Geomet Finish: Protects rotor hats and non-contact areas from rust while friction surfaces stay bare for pad bedding
- Includes Hardware: Caliper pins, pad wear sensors compatible, and abutment clips for complete bolt-on installation without extra parts
- OE Replacement Sizing: 5x100mm bolt pattern, 64.2mm center bore matches Subaru WRX specs for perfect fit and balance
Product Notes
- Follow 200-500 mile bed-in process with light stops to seat pads and rotors
- Clean wheels regularly to minimize ceramic dust buildup
- Packaged in single sturdy box with foam separators to prevent damage
Installation Notes
- Professional installation recommended.
- Torque caliper bolts to 20 ft-lbs and banjo bolt to 22 ft-lbs per Subaru service manual
- Uses existing OEM calipers, pads slide into place with included pins and clips
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2006-2007 | Subaru | B9 Tribeca | Base |
| 2006-2007 | Subaru | B9 Tribeca | Limited |
| 2015-2019 | Subaru | Legacy | 3.6R Limited |
| 2015-2019 | Subaru | Outback | 2.5i |
| 2015-2019 | Subaru | Outback | 2.5i Limited |
| 2015-2019 | Subaru | Outback | 2.5i Premium |
| 2015-2019 | Subaru | Outback | 3.6R Limited |
| 2017-2019 | Subaru | Outback | 3.6R Touring |
| 2008-2009 | Subaru | Tribeca | Base |
| 2008-2014 | Subaru | Tribeca | Limited |
| 2010-2012 | Subaru | Tribeca | Premium |
| 2010-2012 | Subaru | Tribeca | Touring |
| 2015-2021 | Subaru | WRX | Base |
| 2015-2021 | Subaru | WRX | Premium |
Why Choose Power Stop?
- Engineered and dyno-tested for street and track use on Subaru platforms
- Meets SAE J431 G3000 material standards for durability and crack resistance
- Designed in Chicago with multi-layer quality checks for consistent performance
Frequently Asked Questions
-
Q: Will this fit Subaru WRX STI models?
A: Designed for WRX Base and Premium 2015-2021 with 11.57-inch front rotors, not larger STI rotors -
Q: What rotor material and coating is used?
A: High carbon content steel rotors with Geomet semi-coating on hats and edges for corrosion protection, bare vanes for bedding -
Q: What is the warranty and installation time?
A: 3-year/36,000-mile warranty on pads and rotors, typical DIY install takes 1-2 hours per side with basic tools
Shipping & Handling
- Method: Free ground shipping on orders over $99
- Availability: In stock - ships same or next business day
- Packaging: Single corrugated box 18 x 18 x 6 inches with protective inserts
- Weight: 28.9 lbs shipping weight
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