Hawk HB452N.545 HP Plus Rear Brake Pads for 04-08 Subaru Impreza/Forester & Saab

Vehicle Fitment

• 2004-2008 Subaru Forester (Rear)
• 2004-2007 Subaru Impreza (Rear)
• 2004 Subaru Impreza WRX (Rear)
• 2005-2006 Saab 9-2X (Rear)
• 2005 Saab 9-2X Aero/Linear (Rear)

Features

• HP Plus high-performance compound engineered for sport-street braking
• Ferro-carbon friction material offering strong, smooth torque delivery
• Improved fade resistance in low-to-mid temperature ranges
• Enhanced pedal feel and modulation for spirited driving
• Designed for autocross and club-level competition use
• Direct rear brake pad replacement fitment
• Compatible with ABS systems for confident stopping control
• Optimized for iron/metal rotors - not for carbon ceramic brake systems

Specifications

• Part Number: HB452N.545
• Compound: HP Plus Ferro-Carbon
• Pad Position: Rear
• Pad Thickness: 0.545" nominal
• FMSI Shape Code: D1004
• Operating Temp Range: approx. 100-800 °F
• Optimal Temp Range: approx. 300-600 °F
• Recommended Use: Sport street, autocross, occasional track

Included Components

• 2x Rear brake pads (left and right pair)

Product Description

Hawk HB452N.545 HP Plus rear brake pads are engineered for drivers seeking stronger braking performance than standard street pads while still maintaining usability on the road. Using Hawk's HP Plus compound, these pads deliver smooth and predictable torque with improved fade resistance in low-to-mid temperature ranges, making them ideal for spirited street driving, autocross, and club-level competition where enhanced stopping capability is needed without going to a full race-only pad.

Designed as a direct replacement for the rear brake calipers on select models of Subaru Impreza (including WRX), Subaru Forester, and Saab 9-2X from the mid-2000s, HB452N.545 pads install easily with no modifications required. Their ferro-carbon friction material is optimized for use with traditional iron or metal rotors and works effectively with ABS braking systems, providing confident stopping control and consistent brake feel. These pads are not compatible with carbon ceramic brake systems and are best suited to vehicles driven on streets and occasional track days.