1990-2001 Acura Honda B-Series B16 B16A B16A2 B18C B18C1 B18C5 B18A B18B. Mounts directly to O.E. Fuel Rail. HONDA RADIATOR. CNC-Machined From 6061-T6 Billet Aluminum. Made of high quality CNC machined T6061 aluminum, specifically engineered for each.