CSF's high‑performance all‑aluminum radiator for Audi B5 A4 1.8T is a true drop‑in replacement engineered for street and track cooling needs. Its 2‑row dual‑pass core uses CSF's B‑Tube technology and precision multi‑louvered fins to increase heat transfer and airflow. CNC‑machined brackets and OE‑style inlet/outlets allow reuse of OEM hoses. TIG‑welded and pressure‑tested, it carries a 2‑year limited warranty.
CSF Audi B5 A4 1.8T High Performance All Aluminum Radiator