Stoptech 127.47022L Disc Brake Rotor - Front Left

StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors Overview

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotor (Part Number 127.47022L) is engineered for Subaru Impreza and WRX STI models. Designed to enhance braking performance, this vented rotor features a coated hat finish and a floating disc mounting system for improved heat dissipation and durability.

• Cross-drilled and slotted surface for efficient heat and gas dissipation
• Vented rotor design with straight vane style for optimal cooling
• Coated hat finish to resist corrosion and extend rotor life
• Floating disc mounting with 2 miscellaneous holes for better thermal expansion
• Compatible with Subaru Impreza and WRX STI models
• Disc dimensions: 326 mm outside diameter, 30 mm nominal thickness
• Mounting bolt circle diameter of 114.3 mm with 5 lug holes

Detailed Product Description

This StopTech Sport Cross-Drilled & Slotted Disc Brake Rotor (127.47022L) is specifically designed for Subaru Impreza and WRX STI vehicles requiring reliable and consistent braking performance. The rotor measures 326 mm in outside diameter and 30 mm in nominal thickness, providing a robust braking surface. Its vented construction with straight vanes promotes effective heat dissipation, reducing the risk of brake fade during aggressive driving or track use.

The cross-drilled and slotted surface pattern helps evacuate gases, dust, and water from the rotor surface, maintaining consistent pad contact and improving wet-weather braking. The coated hat finish protects the rotor’s central hub from corrosion, ensuring long-term durability. The floating disc mounting system with two additional holes allows for thermal expansion, reducing stress and potential warping.

StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors Product Line

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors line is designed to provide enhanced braking performance for sport compact and performance vehicles. This product line focuses on improving heat management and pad bite through precision-machined cross-drilled holes and slots. The rotors are vented with straight vanes to optimize airflow and cooling, making them suitable for both street and light track use. The coated hat finish adds corrosion resistance, extending rotor service life under demanding conditions.

Common Applications and Problem Solving

• Reduces brake fade caused by excessive heat buildup
• Improves braking performance in wet or dusty conditions
• Minimizes rotor warping and cracking under thermal stress
• Enhances pad bite and braking response for Subaru Impreza and WRX STI
• Prevents corrosion on rotor hats for longer service intervals

Installation Notes and Tips

• Ensure compatibility with Subaru Impreza and WRX STI before installation
• Check rotor discard thickness of 28 mm before replacement to maintain safety
• Use proper torque specifications for the 5 lug holes with 12.9 mm diameter studs
• Inspect brake pads and calipers during rotor replacement for optimal performance
• Follow manufacturer guidelines for bedding-in new rotors and pads

Quality Assurance and Warranty

StopTech disc brake rotors are manufactured to meet strict quality standards, ensuring consistent performance and durability. The 127.47022L rotor undergoes precision machining and coating processes to maintain dimensional accuracy and corrosion resistance. While specific warranty details are not provided here, StopTech products typically come with a limited warranty against manufacturing defects. Consult the product documentation or manufacturer for exact warranty terms.