Description
The CSF #7071 High-Performance All-Aluminum Radiator is engineered to deliver exceptional cooling efficiency for your Audi S4 B5 models from 2000 to 2002. With over five decades of experience, CSF manufactures radiators that combine innovative technology with durability, making this product an ideal choice for street drivers, high-performance builds, and motorsports enthusiasts alike. Designed for a straightforward installation, the radiator is a direct drop-in replacement that fits perfectly into the OEM location without modifications, accepting all factory components including quick-connect hoses, the AC condenser, mounting brackets, and the fan shroud. This ensures a hassle-free upgrade to superior cooling performance and reliability. The core features a 2-row, 42mm dual core with CSF’s exclusive B-Tube Technology, which enhances heat transfer by approximately 15% over conventional designs. Unlike standard oval tubes, the carefully engineered “B” shape allows for thinner, lighter aluminum while maintaining strength and efficiency. The seam-brazed B-tubes facilitate dual liquid laminar flow, increasing heat dissipation and overall cooling capacity. The radiator is equipped with ultra-efficient multi-louvered fins that maximize airflow and surface contact, meticulously designed and tested in CSF’s wind tunnel lab to optimize heat rejection. CNC-machined brackets and fittings ensure a precise fit, while the all-aluminum race-style drain plug offers durability and ease of maintenance. The smooth satin finish provides a sleek, professional appearance, completing this high-performance upgrade for your vehicle. Whether you’re pushing your car on the street or at the track, the CSF #7071 radiator is built to deliver reliable cooling and enhance your engine’s performance. It is compatible with OEM components and designed for quick and secure installation, making it a dependable choice for enthusiasts seeking quality, efficiency, and durability in an automotive radiator.
Features:
- Drop-in fit with no modifications required for installation
- Accepts all OEM components including quick-connect hoses, AC condenser, and fan shroud
- 2-Row 42mm dual core with CSF’s exclusive B-Tube Technology for improved heat transfer
- Ultra-efficient multi-louvered fins with 6.5mm fin height for maximum airflow
- CNC machined brackets and fittings for optimal fit and durability
- All-aluminum race-style drain plug for long-lasting performance
- Smooth satin finish for a professional appearance
Fitment:
Audi S4 Avant 2001
Audi S4 Avant 2002
Audi S4 Base 2000
Audi S4 Base 2001
Audi S4 Base 2002



























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