Brembo 09.7813.1X Xtra Cross-Drilled Rear Brake Rotor for 04 Subaru Impreza STI

Vehicle Fitment

• 2004 Subaru Impreza WRX STI (All Trims/2.5 L Turbo H4, AWD, Rear)

Features

• Xtra series cross-drilled rear brake rotor for improved cooling and fade resistance
• UV coated corrosion-resistant finish for long-lasting appearance and protection
• One-piece vented rotor construction for heat management and reliability
• Cross-drilled surface enhances brake response and initial bite
• Balancing precision reduces vibration and noise under braking
• Designed for use with stock rear calipers and mounting hardware
• High-carbon cast iron material for strength and durability
• OEM-equivalent replacement that meets standard braking performance expectations

Specifications

• Part Number: 09.7813.1X
• Fitment Position: Rear axle (left/right)
• Rotor Type: Vented with cross-drilled surface
• Rotor Finish: UV coated corrosion protection
• Diameter: 316 mm
• Nominal Thickness: 20 mm
• Minimum Thickness: 18.5 mm
• Height: ~67 mm
• Centering Diameter: ~58 mm
• Lug Pattern: 5 lug holes
• Recommended Torque: ~100 Nm
• Material: High-carbon grey cast iron

Included Components

• 1x Rear cross-drilled brake rotor (08.7813.1X)
• Fixing screws/hardware (included per supplier packaging)

Product Description

The Brembo 09.7813.1X Xtra Cross-Drilled Rear Brake Rotor is a high-quality performance-oriented replacement rotor engineered to deliver improved cooling and braking response on compatible Subaru Impreza WRX STI models. Featuring cross-drilled holes and a UV protective coating, this rotor helps dissipate heat more efficiently under load while resisting corrosion and maintaining a clean, lasting appearance. The vented one-piece construction and high-carbon cast iron material ensure strength and dependable performance during everyday and spirited driving conditions.

Designed as a direct fit for the rear axle of the 2004 Subaru Impreza WRX STI, this rotor integrates with stock calipers and mounting hardware for straightforward installation. Precision balancing minimizes vibration and noise for a smoother braking feel, and replacing brake pads simultaneously with rotors is recommended to maximize overall braking performance and rotor life.