Intercooler Audi A4 B5 1.8T 98-01 TurboWorks intercoolers have excellent air flow. We guarantee very good durability and great cooling. They perfectly replace serial intercoolers, increasing the car's performance. Our intercoolers, as one of the few, have been tested above 10 bar. Dedicated to models: AUDI A4 B5, A4 B5 QUATTRO 1.8T 98-01 Core dimensions: Width: 520mm Height: 230mm Thickness: 60mm Inlets: 2 . 5 "(63mm) Provides more than 50% more airflow compared to the stock intercooler. & Nbsp