2022-2026 Honda Civic Si Radiators (FE1)

In stock
Most items are build to order
Please allow up to 13 weeks to manufacture if out of stock. You can call us to check stock status.
$1,129.00
Option

Part Number

  • SKU CR-UC-TPR011B
  • Made in the USA – Hand-built in PWR’s state-of-the-art Indianapolis facility using premium aluminum, with full control over quality at every step.
  • Proven Cooling Performance – Advanced PWR tube and fin technology engineered for consistent, repeatable heat rejection.
  • Lightweight & Efficient – Designed to maximize cooling performance without unnecessary material or excess weight.
  • Motorsport-Inspired Engineering – Developed from decades of professional racing experience and real-world validation.
  • World-Class Precision TIG-Welded – Handcrafted for durability, reliability, and precise fitment down to the smallest detail.
  • Proudly American Made – Built right here in the USA, not imported or rebranded, ensuring true manufacturing oversight and accountability.
  • Built, Not Just Assembled – Engineered and manufactured in-house from core to final weld, not pieced together from off-the-shelf components.
Description Fitment Shipping Policy

Honda Civic Si FE1 Performance Radiator

Street Spec & Track Spec Options Available

Overview

The PWR Performance Radiator for the 2022+ Honda Civic Si (FE1) is engineered to deliver exceptional cooling efficiency, OE-quality fitment, and uncompromising reliability for both spirited street driving and dedicated track use. Constructed from premium aluminum and handcrafted with precision TIG welding in the USA, this radiator is designed to support increased performance demands while maintaining seamless integration with the factory cooling system.

Both versions utilize a single-pass core design with advanced louvered fin and engineered tube technology to maximize heat dissipation and stabilize coolant temperatures—allowing you to drive harder for longer without overheating concerns.

Street Spec Radiator

The Street Spec version is optimized for daily driving and spirited street use, offering improved cooling performance while maintaining proper airflow balance for consistent engine water temperatures in real-world conditions.

• Ideal for daily-driven and enthusiast street cars
• Improved coolant temperature control under aggressive driving
• Designed to maintain proper airflow for street environments
• Direct bolt-in installation using OEM mounting provisions

Track Spec Radiator

The Track Spec version is engineered specifically for high-demand track environments, featuring a higher-density core with approximately 40% more water tubes than the Street Spec radiator. This design delivers significantly increased heat rejection during extended high-RPM and high-load operation.

• Designed for track-only or competition-focused vehicles
• Higher-density core for maximum heat rejection
• Ideal for extended track sessions and sustained high-performance driving

Key Features (Both Versions)

• Handcrafted and professionally TIG-welded in the USA
• Premium all-aluminum construction
• Engineered tube and R-fin technology for maximum heat rejection
• Single-pass radiator design
• OEM mounting provisions for clean, factory-style installation
• Easy, drop-in replacement

Whether you’re carving back roads or pushing lap after lap on track, PWR offers the right cooling solution for your Civic Si. Choose the configuration that matches your driving style and upgrade with confidence—experience the unfair advantage in cooling technology.