Review on Mishimoto MMRAD-240-89KA: High-Performance Aluminum Radiator for Nissan 240sx KA 1989-1994 by Lance Levatte

OEM has plastic top and bottom that always cracks, it's solid metal. Much thicker core than OEM. Keeps my LS 240sx cool on the go. Don't let anyone tell you aluminum heatsinks are less reliable - Mishimoto is backed by a lifetime warranty, craftsman quality, no questions asked. They even replace it if you damage it in an accident.