EBC RK1511 Vented Rear Brake Rotors for 2008-2017 Subaru WRX STI 2.5L AWD 316 mm

Vehicle Fitment

• 2008-2017 Subaru WRX STI (GRB/GRF, AWD, 2.5L H4 Turbo)
• 2008-2014 Subaru Impreza WRX STI (Hatch/Sedan, AWD, 2.5L H4 Turbo)

Features

• OE-style vented rear rotors matched to factory brake systems
• Precision-machined G3000 high-carbon cast iron
• GEOMET corrosion-resistant coating for long-term durability
• Factory run-out inspected (<0.05 mm) to reduce vibration
• 5x114.3 bolt pattern with 58 mm center bore
• 316 mm diameter x 20 mm thickness x 64 mm height
• Compatible with FMSI pad D961
• Fully street-legal performance parts for daily use

Specifications

• Position: Rear axle only
• Rotor type: Vented disc, plain surface
• Outer diameter: 316 mm; Thickness: 20 mm; Min thickness: ~18 mm
• Height: 64 mm; Center bore: 58 mm
• Bolt pattern: 5x114.3; Material: G3000 cast iron
• Coating: GEOMET silver-grey anti-rust
• Balanced per QC (<0.05 mm run-out)
• Emissions: 50-state compliant

Included Components

• 2x EBC RK1511 vented rear brake rotors (316x20 mm)

Product Description

The EBC RK1511 Ultimax OE-Style Rear Brake Rotors deliver direct-fit performance for Subaru WRX STI models from 2008 through 2017 (GRB/GRF chassis) and earlier WRX STI variants from 2008-2014. Crafted from premium G3000 high-carbon cast iron, these precise vented discs are engineered to original equipment specifications for thickness (20 mm), diameter (316 mm), and balanced machining tolerances (<0.05 mm run-out). Each rotor features a GEOMET anti-corrosion coating to ensure longevity and protect against rust - even in demanding environments.

Designed to match factory FMSI D961 pads and fit OEM 5x114.3 hubs with 58 mm center bores, the RK1511 eliminates guesswork during installation - offering bolt-on simplicity with full compatibility. Street-legal in all 50 states and built to OEM-level quality, these rotors provide improved thermal mass and braking consistency, making them ideal for daily driving, performance use, or STI maintenance.